Commit | Line | Data |
---|---|---|
19e6b90e | 1 | /* dwarf.c -- display DWARF contents of a BFD binary file |
fe4eaaf4 | 2 | Copyright 2005, 2006, 2007, 2008 |
19e6b90e L |
3 | Free Software Foundation, Inc. |
4 | ||
5 | This file is part of GNU Binutils. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
32866df7 | 9 | the Free Software Foundation; either version 3 of the License, or |
19e6b90e L |
10 | (at your option) any later version. |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program; if not, write to the Free Software | |
19 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA | |
20 | 02110-1301, USA. */ | |
21 | ||
3db64b00 | 22 | #include "sysdep.h" |
19e6b90e | 23 | #include "libiberty.h" |
3db64b00 AM |
24 | #include "bfd.h" |
25 | #include "bucomm.h" | |
2dc4cec1 | 26 | #include "elf/common.h" |
3db64b00 AM |
27 | #include "elf/dwarf2.h" |
28 | #include "dwarf.h" | |
19e6b90e L |
29 | |
30 | static int have_frame_base; | |
31 | static int need_base_address; | |
32 | ||
33 | static unsigned int last_pointer_size = 0; | |
34 | static int warned_about_missing_comp_units = FALSE; | |
35 | ||
36 | static unsigned int num_debug_info_entries = 0; | |
37 | static debug_info *debug_information = NULL; | |
cc86f28f NC |
38 | /* Special value for num_debug_info_entries to indicate |
39 | that the .debug_info section could not be loaded/parsed. */ | |
40 | #define DEBUG_INFO_UNAVAILABLE (unsigned int) -1 | |
19e6b90e | 41 | |
2dc4cec1 | 42 | int eh_addr_size; |
19e6b90e L |
43 | |
44 | int do_debug_info; | |
45 | int do_debug_abbrevs; | |
46 | int do_debug_lines; | |
47 | int do_debug_pubnames; | |
48 | int do_debug_aranges; | |
49 | int do_debug_ranges; | |
50 | int do_debug_frames; | |
51 | int do_debug_frames_interp; | |
52 | int do_debug_macinfo; | |
53 | int do_debug_str; | |
54 | int do_debug_loc; | |
a262ae96 | 55 | int do_wide; |
19e6b90e | 56 | |
4cb93e3b TG |
57 | /* Values for do_debug_lines. */ |
58 | #define FLAG_DEBUG_LINES_RAW 1 | |
59 | #define FLAG_DEBUG_LINES_DECODED 2 | |
60 | ||
19e6b90e L |
61 | dwarf_vma (*byte_get) (unsigned char *, int); |
62 | ||
63 | dwarf_vma | |
64 | byte_get_little_endian (unsigned char *field, int size) | |
65 | { | |
66 | switch (size) | |
67 | { | |
68 | case 1: | |
69 | return *field; | |
70 | ||
71 | case 2: | |
72 | return ((unsigned int) (field[0])) | |
73 | | (((unsigned int) (field[1])) << 8); | |
74 | ||
75 | case 4: | |
76 | return ((unsigned long) (field[0])) | |
77 | | (((unsigned long) (field[1])) << 8) | |
78 | | (((unsigned long) (field[2])) << 16) | |
79 | | (((unsigned long) (field[3])) << 24); | |
80 | ||
81 | case 8: | |
82 | if (sizeof (dwarf_vma) == 8) | |
83 | return ((dwarf_vma) (field[0])) | |
84 | | (((dwarf_vma) (field[1])) << 8) | |
85 | | (((dwarf_vma) (field[2])) << 16) | |
86 | | (((dwarf_vma) (field[3])) << 24) | |
87 | | (((dwarf_vma) (field[4])) << 32) | |
88 | | (((dwarf_vma) (field[5])) << 40) | |
89 | | (((dwarf_vma) (field[6])) << 48) | |
90 | | (((dwarf_vma) (field[7])) << 56); | |
91 | else if (sizeof (dwarf_vma) == 4) | |
92 | /* We want to extract data from an 8 byte wide field and | |
93 | place it into a 4 byte wide field. Since this is a little | |
94 | endian source we can just use the 4 byte extraction code. */ | |
95 | return ((unsigned long) (field[0])) | |
96 | | (((unsigned long) (field[1])) << 8) | |
97 | | (((unsigned long) (field[2])) << 16) | |
98 | | (((unsigned long) (field[3])) << 24); | |
99 | ||
100 | default: | |
101 | error (_("Unhandled data length: %d\n"), size); | |
102 | abort (); | |
103 | } | |
104 | } | |
105 | ||
106 | dwarf_vma | |
107 | byte_get_big_endian (unsigned char *field, int size) | |
108 | { | |
109 | switch (size) | |
110 | { | |
111 | case 1: | |
112 | return *field; | |
113 | ||
114 | case 2: | |
115 | return ((unsigned int) (field[1])) | (((int) (field[0])) << 8); | |
116 | ||
117 | case 4: | |
118 | return ((unsigned long) (field[3])) | |
119 | | (((unsigned long) (field[2])) << 8) | |
120 | | (((unsigned long) (field[1])) << 16) | |
121 | | (((unsigned long) (field[0])) << 24); | |
122 | ||
123 | case 8: | |
124 | if (sizeof (dwarf_vma) == 8) | |
125 | return ((dwarf_vma) (field[7])) | |
126 | | (((dwarf_vma) (field[6])) << 8) | |
127 | | (((dwarf_vma) (field[5])) << 16) | |
128 | | (((dwarf_vma) (field[4])) << 24) | |
129 | | (((dwarf_vma) (field[3])) << 32) | |
130 | | (((dwarf_vma) (field[2])) << 40) | |
131 | | (((dwarf_vma) (field[1])) << 48) | |
132 | | (((dwarf_vma) (field[0])) << 56); | |
133 | else if (sizeof (dwarf_vma) == 4) | |
134 | { | |
135 | /* Although we are extracing data from an 8 byte wide field, | |
136 | we are returning only 4 bytes of data. */ | |
137 | field += 4; | |
138 | return ((unsigned long) (field[3])) | |
139 | | (((unsigned long) (field[2])) << 8) | |
140 | | (((unsigned long) (field[1])) << 16) | |
141 | | (((unsigned long) (field[0])) << 24); | |
142 | } | |
143 | ||
144 | default: | |
145 | error (_("Unhandled data length: %d\n"), size); | |
146 | abort (); | |
147 | } | |
148 | } | |
149 | ||
150 | static dwarf_vma | |
151 | byte_get_signed (unsigned char *field, int size) | |
152 | { | |
153 | dwarf_vma x = byte_get (field, size); | |
154 | ||
155 | switch (size) | |
156 | { | |
157 | case 1: | |
158 | return (x ^ 0x80) - 0x80; | |
159 | case 2: | |
160 | return (x ^ 0x8000) - 0x8000; | |
161 | case 4: | |
162 | return (x ^ 0x80000000) - 0x80000000; | |
163 | case 8: | |
164 | return x; | |
165 | default: | |
166 | abort (); | |
167 | } | |
168 | } | |
169 | ||
f1c4cc75 RH |
170 | static int |
171 | size_of_encoded_value (int encoding) | |
172 | { | |
173 | switch (encoding & 0x7) | |
174 | { | |
175 | default: /* ??? */ | |
176 | case 0: return eh_addr_size; | |
177 | case 2: return 2; | |
178 | case 3: return 4; | |
179 | case 4: return 8; | |
180 | } | |
181 | } | |
182 | ||
183 | static dwarf_vma | |
184 | get_encoded_value (unsigned char *data, int encoding) | |
185 | { | |
186 | int size = size_of_encoded_value (encoding); | |
187 | ||
188 | if (encoding & DW_EH_PE_signed) | |
189 | return byte_get_signed (data, size); | |
190 | else | |
191 | return byte_get (data, size); | |
192 | } | |
193 | ||
2d9472a2 NC |
194 | /* Print a dwarf_vma value (typically an address, offset or length) in |
195 | hexadecimal format, followed by a space. The length of the value (and | |
196 | hence the precision displayed) is determined by the byte_size parameter. */ | |
cecf136e | 197 | |
2d9472a2 NC |
198 | static void |
199 | print_dwarf_vma (dwarf_vma val, unsigned byte_size) | |
200 | { | |
201 | static char buff[18]; | |
202 | ||
203 | /* Printf does not have a way of specifiying a maximum field width for an | |
204 | integer value, so we print the full value into a buffer and then select | |
205 | the precision we need. */ | |
206 | #if __STDC_VERSION__ >= 199901L || (defined(__GNUC__) && __GNUC__ >= 2) | |
2e14fae2 | 207 | #ifndef __MSVCRT__ |
2d9472a2 | 208 | snprintf (buff, sizeof (buff), "%16.16llx ", val); |
2e14fae2 NC |
209 | #else |
210 | snprintf (buff, sizeof (buff), "%016I64x ", val); | |
211 | #endif | |
2d9472a2 NC |
212 | #else |
213 | snprintf (buff, sizeof (buff), "%16.16lx ", val); | |
214 | #endif | |
215 | ||
72556929 | 216 | fputs (buff + (byte_size == 4 ? 8 : 0), stdout); |
2d9472a2 NC |
217 | } |
218 | ||
19e6b90e L |
219 | static unsigned long int |
220 | read_leb128 (unsigned char *data, unsigned int *length_return, int sign) | |
221 | { | |
222 | unsigned long int result = 0; | |
223 | unsigned int num_read = 0; | |
224 | unsigned int shift = 0; | |
225 | unsigned char byte; | |
226 | ||
227 | do | |
228 | { | |
229 | byte = *data++; | |
230 | num_read++; | |
231 | ||
232 | result |= ((unsigned long int) (byte & 0x7f)) << shift; | |
233 | ||
234 | shift += 7; | |
235 | ||
236 | } | |
237 | while (byte & 0x80); | |
238 | ||
239 | if (length_return != NULL) | |
240 | *length_return = num_read; | |
241 | ||
242 | if (sign && (shift < 8 * sizeof (result)) && (byte & 0x40)) | |
243 | result |= -1L << shift; | |
244 | ||
245 | return result; | |
246 | } | |
247 | ||
248 | typedef struct State_Machine_Registers | |
249 | { | |
250 | unsigned long address; | |
251 | unsigned int file; | |
252 | unsigned int line; | |
253 | unsigned int column; | |
254 | int is_stmt; | |
255 | int basic_block; | |
256 | int end_sequence; | |
257 | /* This variable hold the number of the last entry seen | |
258 | in the File Table. */ | |
259 | unsigned int last_file_entry; | |
260 | } SMR; | |
261 | ||
262 | static SMR state_machine_regs; | |
263 | ||
264 | static void | |
265 | reset_state_machine (int is_stmt) | |
266 | { | |
267 | state_machine_regs.address = 0; | |
268 | state_machine_regs.file = 1; | |
269 | state_machine_regs.line = 1; | |
270 | state_machine_regs.column = 0; | |
271 | state_machine_regs.is_stmt = is_stmt; | |
272 | state_machine_regs.basic_block = 0; | |
273 | state_machine_regs.end_sequence = 0; | |
274 | state_machine_regs.last_file_entry = 0; | |
275 | } | |
276 | ||
277 | /* Handled an extend line op. | |
278 | Returns the number of bytes read. */ | |
279 | ||
280 | static int | |
1617e571 | 281 | process_extended_line_op (unsigned char *data, int is_stmt) |
19e6b90e L |
282 | { |
283 | unsigned char op_code; | |
284 | unsigned int bytes_read; | |
285 | unsigned int len; | |
286 | unsigned char *name; | |
287 | unsigned long adr; | |
288 | ||
289 | len = read_leb128 (data, & bytes_read, 0); | |
290 | data += bytes_read; | |
291 | ||
292 | if (len == 0) | |
293 | { | |
294 | warn (_("badly formed extended line op encountered!\n")); | |
295 | return bytes_read; | |
296 | } | |
297 | ||
298 | len += bytes_read; | |
299 | op_code = *data++; | |
300 | ||
301 | printf (_(" Extended opcode %d: "), op_code); | |
302 | ||
303 | switch (op_code) | |
304 | { | |
305 | case DW_LNE_end_sequence: | |
306 | printf (_("End of Sequence\n\n")); | |
307 | reset_state_machine (is_stmt); | |
308 | break; | |
309 | ||
310 | case DW_LNE_set_address: | |
1617e571 | 311 | adr = byte_get (data, len - bytes_read - 1); |
19e6b90e L |
312 | printf (_("set Address to 0x%lx\n"), adr); |
313 | state_machine_regs.address = adr; | |
314 | break; | |
315 | ||
316 | case DW_LNE_define_file: | |
317 | printf (_(" define new File Table entry\n")); | |
318 | printf (_(" Entry\tDir\tTime\tSize\tName\n")); | |
319 | ||
320 | printf (_(" %d\t"), ++state_machine_regs.last_file_entry); | |
321 | name = data; | |
322 | data += strlen ((char *) data) + 1; | |
323 | printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0)); | |
324 | data += bytes_read; | |
325 | printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0)); | |
326 | data += bytes_read; | |
327 | printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0)); | |
328 | printf (_("%s\n\n"), name); | |
329 | break; | |
330 | ||
e2a0d921 NC |
331 | /* HP extensions. */ |
332 | case DW_LNE_HP_negate_is_UV_update: | |
333 | printf ("DW_LNE_HP_negate_is_UV_update"); | |
334 | break; | |
335 | case DW_LNE_HP_push_context: | |
336 | printf ("DW_LNE_HP_push_context"); | |
337 | break; | |
338 | case DW_LNE_HP_pop_context: | |
339 | printf ("DW_LNE_HP_pop_context"); | |
340 | break; | |
341 | case DW_LNE_HP_set_file_line_column: | |
342 | printf ("DW_LNE_HP_set_file_line_column"); | |
343 | break; | |
344 | case DW_LNE_HP_set_routine_name: | |
345 | printf ("DW_LNE_HP_set_routine_name"); | |
346 | break; | |
347 | case DW_LNE_HP_set_sequence: | |
348 | printf ("DW_LNE_HP_set_sequence"); | |
349 | break; | |
350 | case DW_LNE_HP_negate_post_semantics: | |
351 | printf ("DW_LNE_HP_negate_post_semantics"); | |
352 | break; | |
353 | case DW_LNE_HP_negate_function_exit: | |
354 | printf ("DW_LNE_HP_negate_function_exit"); | |
355 | break; | |
356 | case DW_LNE_HP_negate_front_end_logical: | |
357 | printf ("DW_LNE_HP_negate_front_end_logical"); | |
358 | break; | |
359 | case DW_LNE_HP_define_proc: | |
360 | printf ("DW_LNE_HP_define_proc"); | |
361 | break; | |
cecf136e | 362 | |
19e6b90e | 363 | default: |
e2a0d921 NC |
364 | if (op_code >= DW_LNE_lo_user |
365 | /* The test against DW_LNW_hi_user is redundant due to | |
366 | the limited range of the unsigned char data type used | |
367 | for op_code. */ | |
368 | /*&& op_code <= DW_LNE_hi_user*/) | |
369 | printf (_("user defined: length %d\n"), len - bytes_read); | |
370 | else | |
371 | printf (_("UNKNOWN: length %d\n"), len - bytes_read); | |
19e6b90e L |
372 | break; |
373 | } | |
374 | ||
375 | return len; | |
376 | } | |
377 | ||
378 | static const char * | |
379 | fetch_indirect_string (unsigned long offset) | |
380 | { | |
381 | struct dwarf_section *section = &debug_displays [str].section; | |
382 | ||
383 | if (section->start == NULL) | |
384 | return _("<no .debug_str section>"); | |
385 | ||
bfe2612a L |
386 | /* DWARF sections under Mach-O have non-zero addresses. */ |
387 | offset -= section->address; | |
19e6b90e L |
388 | if (offset > section->size) |
389 | { | |
390 | warn (_("DW_FORM_strp offset too big: %lx\n"), offset); | |
391 | return _("<offset is too big>"); | |
392 | } | |
393 | ||
394 | return (const char *) section->start + offset; | |
395 | } | |
396 | ||
397 | /* FIXME: There are better and more efficient ways to handle | |
398 | these structures. For now though, I just want something that | |
399 | is simple to implement. */ | |
400 | typedef struct abbrev_attr | |
401 | { | |
402 | unsigned long attribute; | |
403 | unsigned long form; | |
404 | struct abbrev_attr *next; | |
405 | } | |
406 | abbrev_attr; | |
407 | ||
408 | typedef struct abbrev_entry | |
409 | { | |
410 | unsigned long entry; | |
411 | unsigned long tag; | |
412 | int children; | |
413 | struct abbrev_attr *first_attr; | |
414 | struct abbrev_attr *last_attr; | |
415 | struct abbrev_entry *next; | |
416 | } | |
417 | abbrev_entry; | |
418 | ||
419 | static abbrev_entry *first_abbrev = NULL; | |
420 | static abbrev_entry *last_abbrev = NULL; | |
421 | ||
422 | static void | |
423 | free_abbrevs (void) | |
424 | { | |
425 | abbrev_entry *abbrev; | |
426 | ||
427 | for (abbrev = first_abbrev; abbrev;) | |
428 | { | |
429 | abbrev_entry *next = abbrev->next; | |
430 | abbrev_attr *attr; | |
431 | ||
432 | for (attr = abbrev->first_attr; attr;) | |
433 | { | |
434 | abbrev_attr *next = attr->next; | |
435 | ||
436 | free (attr); | |
437 | attr = next; | |
438 | } | |
439 | ||
440 | free (abbrev); | |
441 | abbrev = next; | |
442 | } | |
443 | ||
444 | last_abbrev = first_abbrev = NULL; | |
445 | } | |
446 | ||
447 | static void | |
448 | add_abbrev (unsigned long number, unsigned long tag, int children) | |
449 | { | |
450 | abbrev_entry *entry; | |
451 | ||
452 | entry = malloc (sizeof (*entry)); | |
453 | ||
454 | if (entry == NULL) | |
455 | /* ugg */ | |
456 | return; | |
457 | ||
458 | entry->entry = number; | |
459 | entry->tag = tag; | |
460 | entry->children = children; | |
461 | entry->first_attr = NULL; | |
462 | entry->last_attr = NULL; | |
463 | entry->next = NULL; | |
464 | ||
465 | if (first_abbrev == NULL) | |
466 | first_abbrev = entry; | |
467 | else | |
468 | last_abbrev->next = entry; | |
469 | ||
470 | last_abbrev = entry; | |
471 | } | |
472 | ||
473 | static void | |
474 | add_abbrev_attr (unsigned long attribute, unsigned long form) | |
475 | { | |
476 | abbrev_attr *attr; | |
477 | ||
478 | attr = malloc (sizeof (*attr)); | |
479 | ||
480 | if (attr == NULL) | |
481 | /* ugg */ | |
482 | return; | |
483 | ||
484 | attr->attribute = attribute; | |
485 | attr->form = form; | |
486 | attr->next = NULL; | |
487 | ||
488 | if (last_abbrev->first_attr == NULL) | |
489 | last_abbrev->first_attr = attr; | |
490 | else | |
491 | last_abbrev->last_attr->next = attr; | |
492 | ||
493 | last_abbrev->last_attr = attr; | |
494 | } | |
495 | ||
496 | /* Processes the (partial) contents of a .debug_abbrev section. | |
497 | Returns NULL if the end of the section was encountered. | |
498 | Returns the address after the last byte read if the end of | |
499 | an abbreviation set was found. */ | |
500 | ||
501 | static unsigned char * | |
502 | process_abbrev_section (unsigned char *start, unsigned char *end) | |
503 | { | |
504 | if (first_abbrev != NULL) | |
505 | return NULL; | |
506 | ||
507 | while (start < end) | |
508 | { | |
509 | unsigned int bytes_read; | |
510 | unsigned long entry; | |
511 | unsigned long tag; | |
512 | unsigned long attribute; | |
513 | int children; | |
514 | ||
515 | entry = read_leb128 (start, & bytes_read, 0); | |
516 | start += bytes_read; | |
517 | ||
518 | /* A single zero is supposed to end the section according | |
519 | to the standard. If there's more, then signal that to | |
520 | the caller. */ | |
521 | if (entry == 0) | |
522 | return start == end ? NULL : start; | |
523 | ||
524 | tag = read_leb128 (start, & bytes_read, 0); | |
525 | start += bytes_read; | |
526 | ||
527 | children = *start++; | |
528 | ||
529 | add_abbrev (entry, tag, children); | |
530 | ||
531 | do | |
532 | { | |
533 | unsigned long form; | |
534 | ||
535 | attribute = read_leb128 (start, & bytes_read, 0); | |
536 | start += bytes_read; | |
537 | ||
538 | form = read_leb128 (start, & bytes_read, 0); | |
539 | start += bytes_read; | |
540 | ||
541 | if (attribute != 0) | |
542 | add_abbrev_attr (attribute, form); | |
543 | } | |
544 | while (attribute != 0); | |
545 | } | |
546 | ||
547 | return NULL; | |
548 | } | |
549 | ||
550 | static char * | |
551 | get_TAG_name (unsigned long tag) | |
552 | { | |
553 | switch (tag) | |
554 | { | |
555 | case DW_TAG_padding: return "DW_TAG_padding"; | |
556 | case DW_TAG_array_type: return "DW_TAG_array_type"; | |
557 | case DW_TAG_class_type: return "DW_TAG_class_type"; | |
558 | case DW_TAG_entry_point: return "DW_TAG_entry_point"; | |
559 | case DW_TAG_enumeration_type: return "DW_TAG_enumeration_type"; | |
560 | case DW_TAG_formal_parameter: return "DW_TAG_formal_parameter"; | |
561 | case DW_TAG_imported_declaration: return "DW_TAG_imported_declaration"; | |
562 | case DW_TAG_label: return "DW_TAG_label"; | |
563 | case DW_TAG_lexical_block: return "DW_TAG_lexical_block"; | |
564 | case DW_TAG_member: return "DW_TAG_member"; | |
565 | case DW_TAG_pointer_type: return "DW_TAG_pointer_type"; | |
566 | case DW_TAG_reference_type: return "DW_TAG_reference_type"; | |
567 | case DW_TAG_compile_unit: return "DW_TAG_compile_unit"; | |
568 | case DW_TAG_string_type: return "DW_TAG_string_type"; | |
569 | case DW_TAG_structure_type: return "DW_TAG_structure_type"; | |
570 | case DW_TAG_subroutine_type: return "DW_TAG_subroutine_type"; | |
571 | case DW_TAG_typedef: return "DW_TAG_typedef"; | |
572 | case DW_TAG_union_type: return "DW_TAG_union_type"; | |
573 | case DW_TAG_unspecified_parameters: return "DW_TAG_unspecified_parameters"; | |
574 | case DW_TAG_variant: return "DW_TAG_variant"; | |
575 | case DW_TAG_common_block: return "DW_TAG_common_block"; | |
576 | case DW_TAG_common_inclusion: return "DW_TAG_common_inclusion"; | |
577 | case DW_TAG_inheritance: return "DW_TAG_inheritance"; | |
578 | case DW_TAG_inlined_subroutine: return "DW_TAG_inlined_subroutine"; | |
579 | case DW_TAG_module: return "DW_TAG_module"; | |
580 | case DW_TAG_ptr_to_member_type: return "DW_TAG_ptr_to_member_type"; | |
581 | case DW_TAG_set_type: return "DW_TAG_set_type"; | |
582 | case DW_TAG_subrange_type: return "DW_TAG_subrange_type"; | |
583 | case DW_TAG_with_stmt: return "DW_TAG_with_stmt"; | |
584 | case DW_TAG_access_declaration: return "DW_TAG_access_declaration"; | |
585 | case DW_TAG_base_type: return "DW_TAG_base_type"; | |
586 | case DW_TAG_catch_block: return "DW_TAG_catch_block"; | |
587 | case DW_TAG_const_type: return "DW_TAG_const_type"; | |
588 | case DW_TAG_constant: return "DW_TAG_constant"; | |
589 | case DW_TAG_enumerator: return "DW_TAG_enumerator"; | |
590 | case DW_TAG_file_type: return "DW_TAG_file_type"; | |
591 | case DW_TAG_friend: return "DW_TAG_friend"; | |
592 | case DW_TAG_namelist: return "DW_TAG_namelist"; | |
593 | case DW_TAG_namelist_item: return "DW_TAG_namelist_item"; | |
594 | case DW_TAG_packed_type: return "DW_TAG_packed_type"; | |
595 | case DW_TAG_subprogram: return "DW_TAG_subprogram"; | |
596 | case DW_TAG_template_type_param: return "DW_TAG_template_type_param"; | |
597 | case DW_TAG_template_value_param: return "DW_TAG_template_value_param"; | |
598 | case DW_TAG_thrown_type: return "DW_TAG_thrown_type"; | |
599 | case DW_TAG_try_block: return "DW_TAG_try_block"; | |
600 | case DW_TAG_variant_part: return "DW_TAG_variant_part"; | |
601 | case DW_TAG_variable: return "DW_TAG_variable"; | |
602 | case DW_TAG_volatile_type: return "DW_TAG_volatile_type"; | |
603 | case DW_TAG_MIPS_loop: return "DW_TAG_MIPS_loop"; | |
604 | case DW_TAG_format_label: return "DW_TAG_format_label"; | |
605 | case DW_TAG_function_template: return "DW_TAG_function_template"; | |
606 | case DW_TAG_class_template: return "DW_TAG_class_template"; | |
607 | /* DWARF 2.1 values. */ | |
608 | case DW_TAG_dwarf_procedure: return "DW_TAG_dwarf_procedure"; | |
609 | case DW_TAG_restrict_type: return "DW_TAG_restrict_type"; | |
610 | case DW_TAG_interface_type: return "DW_TAG_interface_type"; | |
611 | case DW_TAG_namespace: return "DW_TAG_namespace"; | |
612 | case DW_TAG_imported_module: return "DW_TAG_imported_module"; | |
613 | case DW_TAG_unspecified_type: return "DW_TAG_unspecified_type"; | |
614 | case DW_TAG_partial_unit: return "DW_TAG_partial_unit"; | |
615 | case DW_TAG_imported_unit: return "DW_TAG_imported_unit"; | |
616 | /* UPC values. */ | |
617 | case DW_TAG_upc_shared_type: return "DW_TAG_upc_shared_type"; | |
618 | case DW_TAG_upc_strict_type: return "DW_TAG_upc_strict_type"; | |
619 | case DW_TAG_upc_relaxed_type: return "DW_TAG_upc_relaxed_type"; | |
620 | default: | |
621 | { | |
622 | static char buffer[100]; | |
623 | ||
624 | snprintf (buffer, sizeof (buffer), _("Unknown TAG value: %lx"), tag); | |
625 | return buffer; | |
626 | } | |
627 | } | |
628 | } | |
629 | ||
630 | static char * | |
631 | get_FORM_name (unsigned long form) | |
632 | { | |
633 | switch (form) | |
634 | { | |
635 | case DW_FORM_addr: return "DW_FORM_addr"; | |
636 | case DW_FORM_block2: return "DW_FORM_block2"; | |
637 | case DW_FORM_block4: return "DW_FORM_block4"; | |
638 | case DW_FORM_data2: return "DW_FORM_data2"; | |
639 | case DW_FORM_data4: return "DW_FORM_data4"; | |
640 | case DW_FORM_data8: return "DW_FORM_data8"; | |
641 | case DW_FORM_string: return "DW_FORM_string"; | |
642 | case DW_FORM_block: return "DW_FORM_block"; | |
643 | case DW_FORM_block1: return "DW_FORM_block1"; | |
644 | case DW_FORM_data1: return "DW_FORM_data1"; | |
645 | case DW_FORM_flag: return "DW_FORM_flag"; | |
646 | case DW_FORM_sdata: return "DW_FORM_sdata"; | |
647 | case DW_FORM_strp: return "DW_FORM_strp"; | |
648 | case DW_FORM_udata: return "DW_FORM_udata"; | |
649 | case DW_FORM_ref_addr: return "DW_FORM_ref_addr"; | |
650 | case DW_FORM_ref1: return "DW_FORM_ref1"; | |
651 | case DW_FORM_ref2: return "DW_FORM_ref2"; | |
652 | case DW_FORM_ref4: return "DW_FORM_ref4"; | |
653 | case DW_FORM_ref8: return "DW_FORM_ref8"; | |
654 | case DW_FORM_ref_udata: return "DW_FORM_ref_udata"; | |
655 | case DW_FORM_indirect: return "DW_FORM_indirect"; | |
656 | default: | |
657 | { | |
658 | static char buffer[100]; | |
659 | ||
660 | snprintf (buffer, sizeof (buffer), _("Unknown FORM value: %lx"), form); | |
661 | return buffer; | |
662 | } | |
663 | } | |
664 | } | |
665 | ||
666 | static unsigned char * | |
667 | display_block (unsigned char *data, unsigned long length) | |
668 | { | |
669 | printf (_(" %lu byte block: "), length); | |
670 | ||
671 | while (length --) | |
672 | printf ("%lx ", (unsigned long) byte_get (data++, 1)); | |
673 | ||
674 | return data; | |
675 | } | |
676 | ||
677 | static int | |
678 | decode_location_expression (unsigned char * data, | |
679 | unsigned int pointer_size, | |
680 | unsigned long length, | |
f1c4cc75 RH |
681 | unsigned long cu_offset, |
682 | struct dwarf_section * section) | |
19e6b90e L |
683 | { |
684 | unsigned op; | |
685 | unsigned int bytes_read; | |
686 | unsigned long uvalue; | |
687 | unsigned char *end = data + length; | |
688 | int need_frame_base = 0; | |
689 | ||
690 | while (data < end) | |
691 | { | |
692 | op = *data++; | |
693 | ||
694 | switch (op) | |
695 | { | |
696 | case DW_OP_addr: | |
697 | printf ("DW_OP_addr: %lx", | |
698 | (unsigned long) byte_get (data, pointer_size)); | |
699 | data += pointer_size; | |
700 | break; | |
701 | case DW_OP_deref: | |
702 | printf ("DW_OP_deref"); | |
703 | break; | |
704 | case DW_OP_const1u: | |
705 | printf ("DW_OP_const1u: %lu", (unsigned long) byte_get (data++, 1)); | |
706 | break; | |
707 | case DW_OP_const1s: | |
708 | printf ("DW_OP_const1s: %ld", (long) byte_get_signed (data++, 1)); | |
709 | break; | |
710 | case DW_OP_const2u: | |
711 | printf ("DW_OP_const2u: %lu", (unsigned long) byte_get (data, 2)); | |
712 | data += 2; | |
713 | break; | |
714 | case DW_OP_const2s: | |
715 | printf ("DW_OP_const2s: %ld", (long) byte_get_signed (data, 2)); | |
716 | data += 2; | |
717 | break; | |
718 | case DW_OP_const4u: | |
719 | printf ("DW_OP_const4u: %lu", (unsigned long) byte_get (data, 4)); | |
720 | data += 4; | |
721 | break; | |
722 | case DW_OP_const4s: | |
723 | printf ("DW_OP_const4s: %ld", (long) byte_get_signed (data, 4)); | |
724 | data += 4; | |
725 | break; | |
726 | case DW_OP_const8u: | |
727 | printf ("DW_OP_const8u: %lu %lu", (unsigned long) byte_get (data, 4), | |
728 | (unsigned long) byte_get (data + 4, 4)); | |
729 | data += 8; | |
730 | break; | |
731 | case DW_OP_const8s: | |
732 | printf ("DW_OP_const8s: %ld %ld", (long) byte_get (data, 4), | |
733 | (long) byte_get (data + 4, 4)); | |
734 | data += 8; | |
735 | break; | |
736 | case DW_OP_constu: | |
737 | printf ("DW_OP_constu: %lu", read_leb128 (data, &bytes_read, 0)); | |
738 | data += bytes_read; | |
739 | break; | |
740 | case DW_OP_consts: | |
741 | printf ("DW_OP_consts: %ld", read_leb128 (data, &bytes_read, 1)); | |
742 | data += bytes_read; | |
743 | break; | |
744 | case DW_OP_dup: | |
745 | printf ("DW_OP_dup"); | |
746 | break; | |
747 | case DW_OP_drop: | |
748 | printf ("DW_OP_drop"); | |
749 | break; | |
750 | case DW_OP_over: | |
751 | printf ("DW_OP_over"); | |
752 | break; | |
753 | case DW_OP_pick: | |
754 | printf ("DW_OP_pick: %ld", (unsigned long) byte_get (data++, 1)); | |
755 | break; | |
756 | case DW_OP_swap: | |
757 | printf ("DW_OP_swap"); | |
758 | break; | |
759 | case DW_OP_rot: | |
760 | printf ("DW_OP_rot"); | |
761 | break; | |
762 | case DW_OP_xderef: | |
763 | printf ("DW_OP_xderef"); | |
764 | break; | |
765 | case DW_OP_abs: | |
766 | printf ("DW_OP_abs"); | |
767 | break; | |
768 | case DW_OP_and: | |
769 | printf ("DW_OP_and"); | |
770 | break; | |
771 | case DW_OP_div: | |
772 | printf ("DW_OP_div"); | |
773 | break; | |
774 | case DW_OP_minus: | |
775 | printf ("DW_OP_minus"); | |
776 | break; | |
777 | case DW_OP_mod: | |
778 | printf ("DW_OP_mod"); | |
779 | break; | |
780 | case DW_OP_mul: | |
781 | printf ("DW_OP_mul"); | |
782 | break; | |
783 | case DW_OP_neg: | |
784 | printf ("DW_OP_neg"); | |
785 | break; | |
786 | case DW_OP_not: | |
787 | printf ("DW_OP_not"); | |
788 | break; | |
789 | case DW_OP_or: | |
790 | printf ("DW_OP_or"); | |
791 | break; | |
792 | case DW_OP_plus: | |
793 | printf ("DW_OP_plus"); | |
794 | break; | |
795 | case DW_OP_plus_uconst: | |
796 | printf ("DW_OP_plus_uconst: %lu", | |
797 | read_leb128 (data, &bytes_read, 0)); | |
798 | data += bytes_read; | |
799 | break; | |
800 | case DW_OP_shl: | |
801 | printf ("DW_OP_shl"); | |
802 | break; | |
803 | case DW_OP_shr: | |
804 | printf ("DW_OP_shr"); | |
805 | break; | |
806 | case DW_OP_shra: | |
807 | printf ("DW_OP_shra"); | |
808 | break; | |
809 | case DW_OP_xor: | |
810 | printf ("DW_OP_xor"); | |
811 | break; | |
812 | case DW_OP_bra: | |
813 | printf ("DW_OP_bra: %ld", (long) byte_get_signed (data, 2)); | |
814 | data += 2; | |
815 | break; | |
816 | case DW_OP_eq: | |
817 | printf ("DW_OP_eq"); | |
818 | break; | |
819 | case DW_OP_ge: | |
820 | printf ("DW_OP_ge"); | |
821 | break; | |
822 | case DW_OP_gt: | |
823 | printf ("DW_OP_gt"); | |
824 | break; | |
825 | case DW_OP_le: | |
826 | printf ("DW_OP_le"); | |
827 | break; | |
828 | case DW_OP_lt: | |
829 | printf ("DW_OP_lt"); | |
830 | break; | |
831 | case DW_OP_ne: | |
832 | printf ("DW_OP_ne"); | |
833 | break; | |
834 | case DW_OP_skip: | |
835 | printf ("DW_OP_skip: %ld", (long) byte_get_signed (data, 2)); | |
836 | data += 2; | |
837 | break; | |
838 | ||
839 | case DW_OP_lit0: | |
840 | case DW_OP_lit1: | |
841 | case DW_OP_lit2: | |
842 | case DW_OP_lit3: | |
843 | case DW_OP_lit4: | |
844 | case DW_OP_lit5: | |
845 | case DW_OP_lit6: | |
846 | case DW_OP_lit7: | |
847 | case DW_OP_lit8: | |
848 | case DW_OP_lit9: | |
849 | case DW_OP_lit10: | |
850 | case DW_OP_lit11: | |
851 | case DW_OP_lit12: | |
852 | case DW_OP_lit13: | |
853 | case DW_OP_lit14: | |
854 | case DW_OP_lit15: | |
855 | case DW_OP_lit16: | |
856 | case DW_OP_lit17: | |
857 | case DW_OP_lit18: | |
858 | case DW_OP_lit19: | |
859 | case DW_OP_lit20: | |
860 | case DW_OP_lit21: | |
861 | case DW_OP_lit22: | |
862 | case DW_OP_lit23: | |
863 | case DW_OP_lit24: | |
864 | case DW_OP_lit25: | |
865 | case DW_OP_lit26: | |
866 | case DW_OP_lit27: | |
867 | case DW_OP_lit28: | |
868 | case DW_OP_lit29: | |
869 | case DW_OP_lit30: | |
870 | case DW_OP_lit31: | |
871 | printf ("DW_OP_lit%d", op - DW_OP_lit0); | |
872 | break; | |
873 | ||
874 | case DW_OP_reg0: | |
875 | case DW_OP_reg1: | |
876 | case DW_OP_reg2: | |
877 | case DW_OP_reg3: | |
878 | case DW_OP_reg4: | |
879 | case DW_OP_reg5: | |
880 | case DW_OP_reg6: | |
881 | case DW_OP_reg7: | |
882 | case DW_OP_reg8: | |
883 | case DW_OP_reg9: | |
884 | case DW_OP_reg10: | |
885 | case DW_OP_reg11: | |
886 | case DW_OP_reg12: | |
887 | case DW_OP_reg13: | |
888 | case DW_OP_reg14: | |
889 | case DW_OP_reg15: | |
890 | case DW_OP_reg16: | |
891 | case DW_OP_reg17: | |
892 | case DW_OP_reg18: | |
893 | case DW_OP_reg19: | |
894 | case DW_OP_reg20: | |
895 | case DW_OP_reg21: | |
896 | case DW_OP_reg22: | |
897 | case DW_OP_reg23: | |
898 | case DW_OP_reg24: | |
899 | case DW_OP_reg25: | |
900 | case DW_OP_reg26: | |
901 | case DW_OP_reg27: | |
902 | case DW_OP_reg28: | |
903 | case DW_OP_reg29: | |
904 | case DW_OP_reg30: | |
905 | case DW_OP_reg31: | |
906 | printf ("DW_OP_reg%d", op - DW_OP_reg0); | |
907 | break; | |
908 | ||
909 | case DW_OP_breg0: | |
910 | case DW_OP_breg1: | |
911 | case DW_OP_breg2: | |
912 | case DW_OP_breg3: | |
913 | case DW_OP_breg4: | |
914 | case DW_OP_breg5: | |
915 | case DW_OP_breg6: | |
916 | case DW_OP_breg7: | |
917 | case DW_OP_breg8: | |
918 | case DW_OP_breg9: | |
919 | case DW_OP_breg10: | |
920 | case DW_OP_breg11: | |
921 | case DW_OP_breg12: | |
922 | case DW_OP_breg13: | |
923 | case DW_OP_breg14: | |
924 | case DW_OP_breg15: | |
925 | case DW_OP_breg16: | |
926 | case DW_OP_breg17: | |
927 | case DW_OP_breg18: | |
928 | case DW_OP_breg19: | |
929 | case DW_OP_breg20: | |
930 | case DW_OP_breg21: | |
931 | case DW_OP_breg22: | |
932 | case DW_OP_breg23: | |
933 | case DW_OP_breg24: | |
934 | case DW_OP_breg25: | |
935 | case DW_OP_breg26: | |
936 | case DW_OP_breg27: | |
937 | case DW_OP_breg28: | |
938 | case DW_OP_breg29: | |
939 | case DW_OP_breg30: | |
940 | case DW_OP_breg31: | |
941 | printf ("DW_OP_breg%d: %ld", op - DW_OP_breg0, | |
942 | read_leb128 (data, &bytes_read, 1)); | |
943 | data += bytes_read; | |
944 | break; | |
945 | ||
946 | case DW_OP_regx: | |
947 | printf ("DW_OP_regx: %lu", read_leb128 (data, &bytes_read, 0)); | |
948 | data += bytes_read; | |
949 | break; | |
950 | case DW_OP_fbreg: | |
951 | need_frame_base = 1; | |
952 | printf ("DW_OP_fbreg: %ld", read_leb128 (data, &bytes_read, 1)); | |
953 | data += bytes_read; | |
954 | break; | |
955 | case DW_OP_bregx: | |
956 | uvalue = read_leb128 (data, &bytes_read, 0); | |
957 | data += bytes_read; | |
958 | printf ("DW_OP_bregx: %lu %ld", uvalue, | |
959 | read_leb128 (data, &bytes_read, 1)); | |
960 | data += bytes_read; | |
961 | break; | |
962 | case DW_OP_piece: | |
963 | printf ("DW_OP_piece: %lu", read_leb128 (data, &bytes_read, 0)); | |
964 | data += bytes_read; | |
965 | break; | |
966 | case DW_OP_deref_size: | |
967 | printf ("DW_OP_deref_size: %ld", (long) byte_get (data++, 1)); | |
968 | break; | |
969 | case DW_OP_xderef_size: | |
970 | printf ("DW_OP_xderef_size: %ld", (long) byte_get (data++, 1)); | |
971 | break; | |
972 | case DW_OP_nop: | |
973 | printf ("DW_OP_nop"); | |
974 | break; | |
975 | ||
976 | /* DWARF 3 extensions. */ | |
977 | case DW_OP_push_object_address: | |
978 | printf ("DW_OP_push_object_address"); | |
979 | break; | |
980 | case DW_OP_call2: | |
981 | /* XXX: Strictly speaking for 64-bit DWARF3 files | |
982 | this ought to be an 8-byte wide computation. */ | |
983 | printf ("DW_OP_call2: <%lx>", (long) byte_get (data, 2) + cu_offset); | |
984 | data += 2; | |
985 | break; | |
986 | case DW_OP_call4: | |
987 | /* XXX: Strictly speaking for 64-bit DWARF3 files | |
988 | this ought to be an 8-byte wide computation. */ | |
989 | printf ("DW_OP_call4: <%lx>", (long) byte_get (data, 4) + cu_offset); | |
990 | data += 4; | |
991 | break; | |
992 | case DW_OP_call_ref: | |
e2a0d921 NC |
993 | /* XXX: Strictly speaking for 64-bit DWARF3 files |
994 | this ought to be an 8-byte wide computation. */ | |
995 | printf ("DW_OP_call_ref: <%lx>", (long) byte_get (data, 4) + cu_offset); | |
996 | data += 4; | |
19e6b90e | 997 | break; |
a87b0a59 NS |
998 | case DW_OP_form_tls_address: |
999 | printf ("DW_OP_form_tls_address"); | |
1000 | break; | |
e2a0d921 NC |
1001 | case DW_OP_call_frame_cfa: |
1002 | printf ("DW_OP_call_frame_cfa"); | |
1003 | break; | |
1004 | case DW_OP_bit_piece: | |
1005 | printf ("DW_OP_bit_piece: "); | |
1006 | printf ("size: %lu ", read_leb128 (data, &bytes_read, 0)); | |
1007 | data += bytes_read; | |
1008 | printf ("offset: %lu ", read_leb128 (data, &bytes_read, 0)); | |
1009 | data += bytes_read; | |
1010 | break; | |
19e6b90e L |
1011 | |
1012 | /* GNU extensions. */ | |
1013 | case DW_OP_GNU_push_tls_address: | |
e2a0d921 NC |
1014 | printf ("DW_OP_GNU_push_tls_address or DW_OP_HP_unknown"); |
1015 | break; | |
1016 | case DW_OP_GNU_uninit: | |
1017 | printf ("DW_OP_GNU_uninit"); | |
1018 | /* FIXME: Is there data associated with this OP ? */ | |
1019 | break; | |
f1c4cc75 RH |
1020 | case DW_OP_GNU_encoded_addr: |
1021 | { | |
1022 | int encoding; | |
1023 | dwarf_vma addr; | |
1024 | ||
1025 | encoding = *data++; | |
1026 | addr = get_encoded_value (data, encoding); | |
1027 | if ((encoding & 0x70) == DW_EH_PE_pcrel) | |
1028 | addr += section->address + (data - section->start); | |
1029 | data += size_of_encoded_value (encoding); | |
1030 | ||
1031 | printf ("DW_OP_GNU_encoded_addr: fmt:%02x addr:", encoding); | |
1032 | print_dwarf_vma (addr, pointer_size); | |
1033 | } | |
1034 | break; | |
e2a0d921 NC |
1035 | |
1036 | /* HP extensions. */ | |
1037 | case DW_OP_HP_is_value: | |
1038 | printf ("DW_OP_HP_is_value"); | |
1039 | /* FIXME: Is there data associated with this OP ? */ | |
1040 | break; | |
1041 | case DW_OP_HP_fltconst4: | |
1042 | printf ("DW_OP_HP_fltconst4"); | |
1043 | /* FIXME: Is there data associated with this OP ? */ | |
1044 | break; | |
1045 | case DW_OP_HP_fltconst8: | |
1046 | printf ("DW_OP_HP_fltconst8"); | |
1047 | /* FIXME: Is there data associated with this OP ? */ | |
1048 | break; | |
1049 | case DW_OP_HP_mod_range: | |
1050 | printf ("DW_OP_HP_mod_range"); | |
1051 | /* FIXME: Is there data associated with this OP ? */ | |
1052 | break; | |
1053 | case DW_OP_HP_unmod_range: | |
1054 | printf ("DW_OP_HP_unmod_range"); | |
1055 | /* FIXME: Is there data associated with this OP ? */ | |
1056 | break; | |
1057 | case DW_OP_HP_tls: | |
1058 | printf ("DW_OP_HP_tls"); | |
1059 | /* FIXME: Is there data associated with this OP ? */ | |
19e6b90e L |
1060 | break; |
1061 | ||
35d60fe4 NC |
1062 | /* PGI (STMicroelectronics) extensions. */ |
1063 | case DW_OP_PGI_omp_thread_num: | |
1064 | /* Pushes the thread number for the current thread as it would be | |
1065 | returned by the standard OpenMP library function: | |
1066 | omp_get_thread_num(). The "current thread" is the thread for | |
1067 | which the expression is being evaluated. */ | |
1068 | printf ("DW_OP_PGI_omp_thread_num"); | |
1069 | break; | |
1070 | ||
19e6b90e L |
1071 | default: |
1072 | if (op >= DW_OP_lo_user | |
1073 | && op <= DW_OP_hi_user) | |
1074 | printf (_("(User defined location op)")); | |
1075 | else | |
1076 | printf (_("(Unknown location op)")); | |
1077 | /* No way to tell where the next op is, so just bail. */ | |
1078 | return need_frame_base; | |
1079 | } | |
1080 | ||
1081 | /* Separate the ops. */ | |
1082 | if (data < end) | |
1083 | printf ("; "); | |
1084 | } | |
1085 | ||
1086 | return need_frame_base; | |
1087 | } | |
1088 | ||
1089 | static unsigned char * | |
6e3d6dc1 NC |
1090 | read_and_display_attr_value (unsigned long attribute, |
1091 | unsigned long form, | |
ec4d4525 | 1092 | unsigned char * data, |
6e3d6dc1 NC |
1093 | unsigned long cu_offset, |
1094 | unsigned long pointer_size, | |
1095 | unsigned long offset_size, | |
1096 | int dwarf_version, | |
1097 | debug_info * debug_info_p, | |
1098 | int do_loc, | |
1099 | struct dwarf_section * section) | |
19e6b90e L |
1100 | { |
1101 | unsigned long uvalue = 0; | |
1102 | unsigned char *block_start = NULL; | |
6e3d6dc1 | 1103 | unsigned char * orig_data = data; |
19e6b90e L |
1104 | unsigned int bytes_read; |
1105 | ||
1106 | switch (form) | |
1107 | { | |
1108 | default: | |
1109 | break; | |
1110 | ||
1111 | case DW_FORM_ref_addr: | |
1112 | if (dwarf_version == 2) | |
1113 | { | |
1114 | uvalue = byte_get (data, pointer_size); | |
1115 | data += pointer_size; | |
1116 | } | |
1117 | else if (dwarf_version == 3) | |
1118 | { | |
1119 | uvalue = byte_get (data, offset_size); | |
1120 | data += offset_size; | |
1121 | } | |
1122 | else | |
1123 | { | |
1124 | error (_("Internal error: DWARF version is not 2 or 3.\n")); | |
1125 | } | |
1126 | break; | |
1127 | ||
1128 | case DW_FORM_addr: | |
1129 | uvalue = byte_get (data, pointer_size); | |
1130 | data += pointer_size; | |
1131 | break; | |
1132 | ||
1133 | case DW_FORM_strp: | |
1134 | uvalue = byte_get (data, offset_size); | |
1135 | data += offset_size; | |
1136 | break; | |
1137 | ||
1138 | case DW_FORM_ref1: | |
1139 | case DW_FORM_flag: | |
1140 | case DW_FORM_data1: | |
1141 | uvalue = byte_get (data++, 1); | |
1142 | break; | |
1143 | ||
1144 | case DW_FORM_ref2: | |
1145 | case DW_FORM_data2: | |
1146 | uvalue = byte_get (data, 2); | |
1147 | data += 2; | |
1148 | break; | |
1149 | ||
1150 | case DW_FORM_ref4: | |
1151 | case DW_FORM_data4: | |
1152 | uvalue = byte_get (data, 4); | |
1153 | data += 4; | |
1154 | break; | |
1155 | ||
1156 | case DW_FORM_sdata: | |
1157 | uvalue = read_leb128 (data, & bytes_read, 1); | |
1158 | data += bytes_read; | |
1159 | break; | |
1160 | ||
1161 | case DW_FORM_ref_udata: | |
1162 | case DW_FORM_udata: | |
1163 | uvalue = read_leb128 (data, & bytes_read, 0); | |
1164 | data += bytes_read; | |
1165 | break; | |
1166 | ||
1167 | case DW_FORM_indirect: | |
1168 | form = read_leb128 (data, & bytes_read, 0); | |
1169 | data += bytes_read; | |
1170 | if (!do_loc) | |
1171 | printf (" %s", get_FORM_name (form)); | |
1172 | return read_and_display_attr_value (attribute, form, data, | |
1173 | cu_offset, pointer_size, | |
1174 | offset_size, dwarf_version, | |
ec4d4525 | 1175 | debug_info_p, do_loc, |
6e3d6dc1 | 1176 | section); |
19e6b90e L |
1177 | } |
1178 | ||
1179 | switch (form) | |
1180 | { | |
1181 | case DW_FORM_ref_addr: | |
1182 | if (!do_loc) | |
ec4d4525 | 1183 | printf (" <0x%lx>", uvalue); |
19e6b90e L |
1184 | break; |
1185 | ||
1186 | case DW_FORM_ref1: | |
1187 | case DW_FORM_ref2: | |
1188 | case DW_FORM_ref4: | |
1189 | case DW_FORM_ref_udata: | |
1190 | if (!do_loc) | |
ec4d4525 | 1191 | printf (" <0x%lx>", uvalue + cu_offset); |
19e6b90e L |
1192 | break; |
1193 | ||
1194 | case DW_FORM_data4: | |
1195 | case DW_FORM_addr: | |
1196 | if (!do_loc) | |
ec4d4525 | 1197 | printf (" 0x%lx", uvalue); |
19e6b90e L |
1198 | break; |
1199 | ||
1200 | case DW_FORM_flag: | |
1201 | case DW_FORM_data1: | |
1202 | case DW_FORM_data2: | |
1203 | case DW_FORM_sdata: | |
1204 | case DW_FORM_udata: | |
1205 | if (!do_loc) | |
1206 | printf (" %ld", uvalue); | |
1207 | break; | |
1208 | ||
1209 | case DW_FORM_ref8: | |
1210 | case DW_FORM_data8: | |
1211 | if (!do_loc) | |
1212 | { | |
1213 | uvalue = byte_get (data, 4); | |
ec4d4525 NC |
1214 | printf (" 0x%lx", uvalue); |
1215 | printf (" 0x%lx", (unsigned long) byte_get (data + 4, 4)); | |
19e6b90e L |
1216 | } |
1217 | if ((do_loc || do_debug_loc || do_debug_ranges) | |
1218 | && num_debug_info_entries == 0) | |
1219 | { | |
1220 | if (sizeof (uvalue) == 8) | |
1221 | uvalue = byte_get (data, 8); | |
1222 | else | |
1223 | error (_("DW_FORM_data8 is unsupported when sizeof (unsigned long) != 8\n")); | |
1224 | } | |
1225 | data += 8; | |
1226 | break; | |
1227 | ||
1228 | case DW_FORM_string: | |
1229 | if (!do_loc) | |
1230 | printf (" %s", data); | |
1231 | data += strlen ((char *) data) + 1; | |
1232 | break; | |
1233 | ||
1234 | case DW_FORM_block: | |
1235 | uvalue = read_leb128 (data, & bytes_read, 0); | |
1236 | block_start = data + bytes_read; | |
1237 | if (do_loc) | |
1238 | data = block_start + uvalue; | |
1239 | else | |
1240 | data = display_block (block_start, uvalue); | |
1241 | break; | |
1242 | ||
1243 | case DW_FORM_block1: | |
1244 | uvalue = byte_get (data, 1); | |
1245 | block_start = data + 1; | |
1246 | if (do_loc) | |
1247 | data = block_start + uvalue; | |
1248 | else | |
1249 | data = display_block (block_start, uvalue); | |
1250 | break; | |
1251 | ||
1252 | case DW_FORM_block2: | |
1253 | uvalue = byte_get (data, 2); | |
1254 | block_start = data + 2; | |
1255 | if (do_loc) | |
1256 | data = block_start + uvalue; | |
1257 | else | |
1258 | data = display_block (block_start, uvalue); | |
1259 | break; | |
1260 | ||
1261 | case DW_FORM_block4: | |
1262 | uvalue = byte_get (data, 4); | |
1263 | block_start = data + 4; | |
1264 | if (do_loc) | |
1265 | data = block_start + uvalue; | |
1266 | else | |
1267 | data = display_block (block_start, uvalue); | |
1268 | break; | |
1269 | ||
1270 | case DW_FORM_strp: | |
1271 | if (!do_loc) | |
1272 | printf (_(" (indirect string, offset: 0x%lx): %s"), | |
1273 | uvalue, fetch_indirect_string (uvalue)); | |
1274 | break; | |
1275 | ||
1276 | case DW_FORM_indirect: | |
1277 | /* Handled above. */ | |
1278 | break; | |
1279 | ||
1280 | default: | |
1281 | warn (_("Unrecognized form: %lu\n"), form); | |
1282 | break; | |
1283 | } | |
1284 | ||
19e6b90e L |
1285 | if ((do_loc || do_debug_loc || do_debug_ranges) |
1286 | && num_debug_info_entries == 0) | |
1287 | { | |
1288 | switch (attribute) | |
1289 | { | |
1290 | case DW_AT_frame_base: | |
1291 | have_frame_base = 1; | |
1292 | case DW_AT_location: | |
e2a0d921 NC |
1293 | case DW_AT_string_length: |
1294 | case DW_AT_return_addr: | |
19e6b90e L |
1295 | case DW_AT_data_member_location: |
1296 | case DW_AT_vtable_elem_location: | |
e2a0d921 NC |
1297 | case DW_AT_segment: |
1298 | case DW_AT_static_link: | |
1299 | case DW_AT_use_location: | |
1300 | if (form == DW_FORM_data4 || form == DW_FORM_data8) | |
19e6b90e L |
1301 | { |
1302 | /* Process location list. */ | |
1303 | unsigned int max = debug_info_p->max_loc_offsets; | |
1304 | unsigned int num = debug_info_p->num_loc_offsets; | |
1305 | ||
1306 | if (max == 0 || num >= max) | |
1307 | { | |
1308 | max += 1024; | |
1309 | debug_info_p->loc_offsets | |
1310 | = xcrealloc (debug_info_p->loc_offsets, | |
1311 | max, sizeof (*debug_info_p->loc_offsets)); | |
1312 | debug_info_p->have_frame_base | |
1313 | = xcrealloc (debug_info_p->have_frame_base, | |
1314 | max, sizeof (*debug_info_p->have_frame_base)); | |
1315 | debug_info_p->max_loc_offsets = max; | |
1316 | } | |
1317 | debug_info_p->loc_offsets [num] = uvalue; | |
1318 | debug_info_p->have_frame_base [num] = have_frame_base; | |
1319 | debug_info_p->num_loc_offsets++; | |
1320 | } | |
1321 | break; | |
e2a0d921 | 1322 | |
19e6b90e L |
1323 | case DW_AT_low_pc: |
1324 | if (need_base_address) | |
1325 | debug_info_p->base_address = uvalue; | |
1326 | break; | |
1327 | ||
1328 | case DW_AT_ranges: | |
1329 | if (form == DW_FORM_data4 || form == DW_FORM_data8) | |
1330 | { | |
1331 | /* Process range list. */ | |
1332 | unsigned int max = debug_info_p->max_range_lists; | |
1333 | unsigned int num = debug_info_p->num_range_lists; | |
1334 | ||
1335 | if (max == 0 || num >= max) | |
1336 | { | |
1337 | max += 1024; | |
1338 | debug_info_p->range_lists | |
1339 | = xcrealloc (debug_info_p->range_lists, | |
1340 | max, sizeof (*debug_info_p->range_lists)); | |
1341 | debug_info_p->max_range_lists = max; | |
1342 | } | |
1343 | debug_info_p->range_lists [num] = uvalue; | |
1344 | debug_info_p->num_range_lists++; | |
1345 | } | |
1346 | break; | |
1347 | ||
1348 | default: | |
1349 | break; | |
1350 | } | |
1351 | } | |
1352 | ||
1353 | if (do_loc) | |
1354 | return data; | |
1355 | ||
ec4d4525 | 1356 | /* For some attributes we can display further information. */ |
19e6b90e L |
1357 | printf ("\t"); |
1358 | ||
1359 | switch (attribute) | |
1360 | { | |
1361 | case DW_AT_inline: | |
1362 | switch (uvalue) | |
1363 | { | |
1364 | case DW_INL_not_inlined: | |
1365 | printf (_("(not inlined)")); | |
1366 | break; | |
1367 | case DW_INL_inlined: | |
1368 | printf (_("(inlined)")); | |
1369 | break; | |
1370 | case DW_INL_declared_not_inlined: | |
1371 | printf (_("(declared as inline but ignored)")); | |
1372 | break; | |
1373 | case DW_INL_declared_inlined: | |
1374 | printf (_("(declared as inline and inlined)")); | |
1375 | break; | |
1376 | default: | |
1377 | printf (_(" (Unknown inline attribute value: %lx)"), uvalue); | |
1378 | break; | |
1379 | } | |
1380 | break; | |
1381 | ||
1382 | case DW_AT_language: | |
1383 | switch (uvalue) | |
1384 | { | |
4b78141a | 1385 | /* Ordered by the numeric value of these constants. */ |
19e6b90e | 1386 | case DW_LANG_C89: printf ("(ANSI C)"); break; |
4b78141a NC |
1387 | case DW_LANG_C: printf ("(non-ANSI C)"); break; |
1388 | case DW_LANG_Ada83: printf ("(Ada)"); break; | |
19e6b90e | 1389 | case DW_LANG_C_plus_plus: printf ("(C++)"); break; |
4b78141a NC |
1390 | case DW_LANG_Cobol74: printf ("(Cobol 74)"); break; |
1391 | case DW_LANG_Cobol85: printf ("(Cobol 85)"); break; | |
19e6b90e L |
1392 | case DW_LANG_Fortran77: printf ("(FORTRAN 77)"); break; |
1393 | case DW_LANG_Fortran90: printf ("(Fortran 90)"); break; | |
19e6b90e | 1394 | case DW_LANG_Pascal83: printf ("(ANSI Pascal)"); break; |
4b78141a | 1395 | case DW_LANG_Modula2: printf ("(Modula 2)"); break; |
19e6b90e | 1396 | /* DWARF 2.1 values. */ |
4b78141a | 1397 | case DW_LANG_Java: printf ("(Java)"); break; |
19e6b90e L |
1398 | case DW_LANG_C99: printf ("(ANSI C99)"); break; |
1399 | case DW_LANG_Ada95: printf ("(ADA 95)"); break; | |
1400 | case DW_LANG_Fortran95: printf ("(Fortran 95)"); break; | |
4b78141a NC |
1401 | /* DWARF 3 values. */ |
1402 | case DW_LANG_PLI: printf ("(PLI)"); break; | |
1403 | case DW_LANG_ObjC: printf ("(Objective C)"); break; | |
1404 | case DW_LANG_ObjC_plus_plus: printf ("(Objective C++)"); break; | |
1405 | case DW_LANG_UPC: printf ("(Unified Parallel C)"); break; | |
1406 | case DW_LANG_D: printf ("(D)"); break; | |
19e6b90e L |
1407 | /* MIPS extension. */ |
1408 | case DW_LANG_Mips_Assembler: printf ("(MIPS assembler)"); break; | |
1409 | /* UPC extension. */ | |
1410 | case DW_LANG_Upc: printf ("(Unified Parallel C)"); break; | |
1411 | default: | |
4b78141a NC |
1412 | if (uvalue >= DW_LANG_lo_user && uvalue <= DW_LANG_hi_user) |
1413 | printf ("(implementation defined: %lx)", uvalue); | |
1414 | else | |
1415 | printf ("(Unknown: %lx)", uvalue); | |
19e6b90e L |
1416 | break; |
1417 | } | |
1418 | break; | |
1419 | ||
1420 | case DW_AT_encoding: | |
1421 | switch (uvalue) | |
1422 | { | |
1423 | case DW_ATE_void: printf ("(void)"); break; | |
1424 | case DW_ATE_address: printf ("(machine address)"); break; | |
1425 | case DW_ATE_boolean: printf ("(boolean)"); break; | |
1426 | case DW_ATE_complex_float: printf ("(complex float)"); break; | |
1427 | case DW_ATE_float: printf ("(float)"); break; | |
1428 | case DW_ATE_signed: printf ("(signed)"); break; | |
1429 | case DW_ATE_signed_char: printf ("(signed char)"); break; | |
1430 | case DW_ATE_unsigned: printf ("(unsigned)"); break; | |
1431 | case DW_ATE_unsigned_char: printf ("(unsigned char)"); break; | |
e2a0d921 | 1432 | /* DWARF 2.1 values: */ |
19e6b90e L |
1433 | case DW_ATE_imaginary_float: printf ("(imaginary float)"); break; |
1434 | case DW_ATE_decimal_float: printf ("(decimal float)"); break; | |
e2a0d921 NC |
1435 | /* DWARF 3 values: */ |
1436 | case DW_ATE_packed_decimal: printf ("(packed_decimal)"); break; | |
1437 | case DW_ATE_numeric_string: printf ("(numeric_string)"); break; | |
1438 | case DW_ATE_edited: printf ("(edited)"); break; | |
1439 | case DW_ATE_signed_fixed: printf ("(signed_fixed)"); break; | |
1440 | case DW_ATE_unsigned_fixed: printf ("(unsigned_fixed)"); break; | |
1441 | /* HP extensions: */ | |
1442 | case DW_ATE_HP_float80: printf ("(HP_float80)"); break; | |
1443 | case DW_ATE_HP_complex_float80: printf ("(HP_complex_float80)"); break; | |
1444 | case DW_ATE_HP_float128: printf ("(HP_float128)"); break; | |
1445 | case DW_ATE_HP_complex_float128:printf ("(HP_complex_float128)"); break; | |
1446 | case DW_ATE_HP_floathpintel: printf ("(HP_floathpintel)"); break; | |
1447 | case DW_ATE_HP_imaginary_float80: printf ("(HP_imaginary_float80)"); break; | |
1448 | case DW_ATE_HP_imaginary_float128: printf ("(HP_imaginary_float128)"); break; | |
1449 | ||
19e6b90e L |
1450 | default: |
1451 | if (uvalue >= DW_ATE_lo_user | |
1452 | && uvalue <= DW_ATE_hi_user) | |
1453 | printf ("(user defined type)"); | |
1454 | else | |
1455 | printf ("(unknown type)"); | |
1456 | break; | |
1457 | } | |
1458 | break; | |
1459 | ||
1460 | case DW_AT_accessibility: | |
1461 | switch (uvalue) | |
1462 | { | |
1463 | case DW_ACCESS_public: printf ("(public)"); break; | |
1464 | case DW_ACCESS_protected: printf ("(protected)"); break; | |
1465 | case DW_ACCESS_private: printf ("(private)"); break; | |
1466 | default: | |
1467 | printf ("(unknown accessibility)"); | |
1468 | break; | |
1469 | } | |
1470 | break; | |
1471 | ||
1472 | case DW_AT_visibility: | |
1473 | switch (uvalue) | |
1474 | { | |
1475 | case DW_VIS_local: printf ("(local)"); break; | |
1476 | case DW_VIS_exported: printf ("(exported)"); break; | |
1477 | case DW_VIS_qualified: printf ("(qualified)"); break; | |
1478 | default: printf ("(unknown visibility)"); break; | |
1479 | } | |
1480 | break; | |
1481 | ||
1482 | case DW_AT_virtuality: | |
1483 | switch (uvalue) | |
1484 | { | |
1485 | case DW_VIRTUALITY_none: printf ("(none)"); break; | |
1486 | case DW_VIRTUALITY_virtual: printf ("(virtual)"); break; | |
1487 | case DW_VIRTUALITY_pure_virtual:printf ("(pure_virtual)"); break; | |
1488 | default: printf ("(unknown virtuality)"); break; | |
1489 | } | |
1490 | break; | |
1491 | ||
1492 | case DW_AT_identifier_case: | |
1493 | switch (uvalue) | |
1494 | { | |
1495 | case DW_ID_case_sensitive: printf ("(case_sensitive)"); break; | |
1496 | case DW_ID_up_case: printf ("(up_case)"); break; | |
1497 | case DW_ID_down_case: printf ("(down_case)"); break; | |
1498 | case DW_ID_case_insensitive: printf ("(case_insensitive)"); break; | |
1499 | default: printf ("(unknown case)"); break; | |
1500 | } | |
1501 | break; | |
1502 | ||
1503 | case DW_AT_calling_convention: | |
1504 | switch (uvalue) | |
1505 | { | |
1506 | case DW_CC_normal: printf ("(normal)"); break; | |
1507 | case DW_CC_program: printf ("(program)"); break; | |
1508 | case DW_CC_nocall: printf ("(nocall)"); break; | |
1509 | default: | |
1510 | if (uvalue >= DW_CC_lo_user | |
1511 | && uvalue <= DW_CC_hi_user) | |
1512 | printf ("(user defined)"); | |
1513 | else | |
1514 | printf ("(unknown convention)"); | |
1515 | } | |
1516 | break; | |
1517 | ||
1518 | case DW_AT_ordering: | |
1519 | switch (uvalue) | |
1520 | { | |
1521 | case -1: printf ("(undefined)"); break; | |
1522 | case 0: printf ("(row major)"); break; | |
1523 | case 1: printf ("(column major)"); break; | |
1524 | } | |
1525 | break; | |
1526 | ||
1527 | case DW_AT_frame_base: | |
1528 | have_frame_base = 1; | |
1529 | case DW_AT_location: | |
e2a0d921 NC |
1530 | case DW_AT_string_length: |
1531 | case DW_AT_return_addr: | |
19e6b90e L |
1532 | case DW_AT_data_member_location: |
1533 | case DW_AT_vtable_elem_location: | |
e2a0d921 NC |
1534 | case DW_AT_segment: |
1535 | case DW_AT_static_link: | |
1536 | case DW_AT_use_location: | |
1537 | if (form == DW_FORM_data4 || form == DW_FORM_data8) | |
1538 | printf (_("(location list)")); | |
1539 | /* Fall through. */ | |
19e6b90e L |
1540 | case DW_AT_allocated: |
1541 | case DW_AT_associated: | |
1542 | case DW_AT_data_location: | |
1543 | case DW_AT_stride: | |
1544 | case DW_AT_upper_bound: | |
cecf136e | 1545 | case DW_AT_lower_bound: |
19e6b90e L |
1546 | if (block_start) |
1547 | { | |
1548 | int need_frame_base; | |
1549 | ||
1550 | printf ("("); | |
1551 | need_frame_base = decode_location_expression (block_start, | |
1552 | pointer_size, | |
1553 | uvalue, | |
f1c4cc75 | 1554 | cu_offset, section); |
19e6b90e L |
1555 | printf (")"); |
1556 | if (need_frame_base && !have_frame_base) | |
1557 | printf (_(" [without DW_AT_frame_base]")); | |
1558 | } | |
19e6b90e L |
1559 | break; |
1560 | ||
ec4d4525 NC |
1561 | case DW_AT_import: |
1562 | { | |
ec4d4525 NC |
1563 | if (form == DW_FORM_ref1 |
1564 | || form == DW_FORM_ref2 | |
1565 | || form == DW_FORM_ref4) | |
1566 | uvalue += cu_offset; | |
1567 | ||
6e3d6dc1 NC |
1568 | if (uvalue >= section->size) |
1569 | warn (_("Offset %lx used as value for DW_AT_import attribute of DIE at offset %lx is too big.\n"), | |
0af1713e | 1570 | uvalue, (unsigned long) (orig_data - section->start)); |
6e3d6dc1 NC |
1571 | else |
1572 | { | |
1573 | unsigned long abbrev_number; | |
1574 | abbrev_entry * entry; | |
1575 | ||
1576 | abbrev_number = read_leb128 (section->start + uvalue, NULL, 0); | |
cecf136e | 1577 | |
6e3d6dc1 NC |
1578 | printf ("[Abbrev Number: %ld", abbrev_number); |
1579 | for (entry = first_abbrev; entry != NULL; entry = entry->next) | |
1580 | if (entry->entry == abbrev_number) | |
1581 | break; | |
1582 | if (entry != NULL) | |
1583 | printf (" (%s)", get_TAG_name (entry->tag)); | |
1584 | printf ("]"); | |
1585 | } | |
ec4d4525 NC |
1586 | } |
1587 | break; | |
1588 | ||
19e6b90e L |
1589 | default: |
1590 | break; | |
1591 | } | |
1592 | ||
1593 | return data; | |
1594 | } | |
1595 | ||
1596 | static char * | |
1597 | get_AT_name (unsigned long attribute) | |
1598 | { | |
1599 | switch (attribute) | |
1600 | { | |
1601 | case DW_AT_sibling: return "DW_AT_sibling"; | |
1602 | case DW_AT_location: return "DW_AT_location"; | |
1603 | case DW_AT_name: return "DW_AT_name"; | |
1604 | case DW_AT_ordering: return "DW_AT_ordering"; | |
1605 | case DW_AT_subscr_data: return "DW_AT_subscr_data"; | |
1606 | case DW_AT_byte_size: return "DW_AT_byte_size"; | |
1607 | case DW_AT_bit_offset: return "DW_AT_bit_offset"; | |
1608 | case DW_AT_bit_size: return "DW_AT_bit_size"; | |
1609 | case DW_AT_element_list: return "DW_AT_element_list"; | |
1610 | case DW_AT_stmt_list: return "DW_AT_stmt_list"; | |
1611 | case DW_AT_low_pc: return "DW_AT_low_pc"; | |
1612 | case DW_AT_high_pc: return "DW_AT_high_pc"; | |
1613 | case DW_AT_language: return "DW_AT_language"; | |
1614 | case DW_AT_member: return "DW_AT_member"; | |
1615 | case DW_AT_discr: return "DW_AT_discr"; | |
1616 | case DW_AT_discr_value: return "DW_AT_discr_value"; | |
1617 | case DW_AT_visibility: return "DW_AT_visibility"; | |
1618 | case DW_AT_import: return "DW_AT_import"; | |
1619 | case DW_AT_string_length: return "DW_AT_string_length"; | |
1620 | case DW_AT_common_reference: return "DW_AT_common_reference"; | |
1621 | case DW_AT_comp_dir: return "DW_AT_comp_dir"; | |
1622 | case DW_AT_const_value: return "DW_AT_const_value"; | |
1623 | case DW_AT_containing_type: return "DW_AT_containing_type"; | |
1624 | case DW_AT_default_value: return "DW_AT_default_value"; | |
1625 | case DW_AT_inline: return "DW_AT_inline"; | |
1626 | case DW_AT_is_optional: return "DW_AT_is_optional"; | |
1627 | case DW_AT_lower_bound: return "DW_AT_lower_bound"; | |
1628 | case DW_AT_producer: return "DW_AT_producer"; | |
1629 | case DW_AT_prototyped: return "DW_AT_prototyped"; | |
1630 | case DW_AT_return_addr: return "DW_AT_return_addr"; | |
1631 | case DW_AT_start_scope: return "DW_AT_start_scope"; | |
1632 | case DW_AT_stride_size: return "DW_AT_stride_size"; | |
1633 | case DW_AT_upper_bound: return "DW_AT_upper_bound"; | |
1634 | case DW_AT_abstract_origin: return "DW_AT_abstract_origin"; | |
1635 | case DW_AT_accessibility: return "DW_AT_accessibility"; | |
1636 | case DW_AT_address_class: return "DW_AT_address_class"; | |
1637 | case DW_AT_artificial: return "DW_AT_artificial"; | |
1638 | case DW_AT_base_types: return "DW_AT_base_types"; | |
1639 | case DW_AT_calling_convention: return "DW_AT_calling_convention"; | |
1640 | case DW_AT_count: return "DW_AT_count"; | |
1641 | case DW_AT_data_member_location: return "DW_AT_data_member_location"; | |
1642 | case DW_AT_decl_column: return "DW_AT_decl_column"; | |
1643 | case DW_AT_decl_file: return "DW_AT_decl_file"; | |
1644 | case DW_AT_decl_line: return "DW_AT_decl_line"; | |
1645 | case DW_AT_declaration: return "DW_AT_declaration"; | |
1646 | case DW_AT_discr_list: return "DW_AT_discr_list"; | |
1647 | case DW_AT_encoding: return "DW_AT_encoding"; | |
1648 | case DW_AT_external: return "DW_AT_external"; | |
1649 | case DW_AT_frame_base: return "DW_AT_frame_base"; | |
1650 | case DW_AT_friend: return "DW_AT_friend"; | |
1651 | case DW_AT_identifier_case: return "DW_AT_identifier_case"; | |
1652 | case DW_AT_macro_info: return "DW_AT_macro_info"; | |
1653 | case DW_AT_namelist_items: return "DW_AT_namelist_items"; | |
1654 | case DW_AT_priority: return "DW_AT_priority"; | |
1655 | case DW_AT_segment: return "DW_AT_segment"; | |
1656 | case DW_AT_specification: return "DW_AT_specification"; | |
1657 | case DW_AT_static_link: return "DW_AT_static_link"; | |
1658 | case DW_AT_type: return "DW_AT_type"; | |
1659 | case DW_AT_use_location: return "DW_AT_use_location"; | |
1660 | case DW_AT_variable_parameter: return "DW_AT_variable_parameter"; | |
1661 | case DW_AT_virtuality: return "DW_AT_virtuality"; | |
1662 | case DW_AT_vtable_elem_location: return "DW_AT_vtable_elem_location"; | |
1663 | /* DWARF 2.1 values. */ | |
1664 | case DW_AT_allocated: return "DW_AT_allocated"; | |
1665 | case DW_AT_associated: return "DW_AT_associated"; | |
1666 | case DW_AT_data_location: return "DW_AT_data_location"; | |
1667 | case DW_AT_stride: return "DW_AT_stride"; | |
1668 | case DW_AT_entry_pc: return "DW_AT_entry_pc"; | |
1669 | case DW_AT_use_UTF8: return "DW_AT_use_UTF8"; | |
1670 | case DW_AT_extension: return "DW_AT_extension"; | |
1671 | case DW_AT_ranges: return "DW_AT_ranges"; | |
1672 | case DW_AT_trampoline: return "DW_AT_trampoline"; | |
1673 | case DW_AT_call_column: return "DW_AT_call_column"; | |
1674 | case DW_AT_call_file: return "DW_AT_call_file"; | |
1675 | case DW_AT_call_line: return "DW_AT_call_line"; | |
e2a0d921 NC |
1676 | case DW_AT_description: return "DW_AT_description"; |
1677 | case DW_AT_binary_scale: return "DW_AT_binary_scale"; | |
1678 | case DW_AT_decimal_scale: return "DW_AT_decimal_scale"; | |
1679 | case DW_AT_small: return "DW_AT_small"; | |
1680 | case DW_AT_decimal_sign: return "DW_AT_decimal_sign"; | |
1681 | case DW_AT_digit_count: return "DW_AT_digit_count"; | |
1682 | case DW_AT_picture_string: return "DW_AT_picture_string"; | |
1683 | case DW_AT_mutable: return "DW_AT_mutable"; | |
1684 | case DW_AT_threads_scaled: return "DW_AT_threads_scaled"; | |
1685 | case DW_AT_explicit: return "DW_AT_explicit"; | |
1686 | case DW_AT_object_pointer: return "DW_AT_object_pointer"; | |
1687 | case DW_AT_endianity: return "DW_AT_endianity"; | |
1688 | case DW_AT_elemental: return "DW_AT_elemental"; | |
1689 | case DW_AT_pure: return "DW_AT_pure"; | |
1690 | case DW_AT_recursive: return "DW_AT_recursive"; | |
1691 | ||
1692 | /* HP and SGI/MIPS extensions. */ | |
1693 | case DW_AT_MIPS_loop_begin: return "DW_AT_MIPS_loop_begin"; | |
1694 | case DW_AT_MIPS_tail_loop_begin: return "DW_AT_MIPS_tail_loop_begin"; | |
1695 | case DW_AT_MIPS_epilog_begin: return "DW_AT_MIPS_epilog_begin"; | |
1696 | case DW_AT_MIPS_loop_unroll_factor: return "DW_AT_MIPS_loop_unroll_factor"; | |
1697 | case DW_AT_MIPS_software_pipeline_depth: return "DW_AT_MIPS_software_pipeline_depth"; | |
1698 | case DW_AT_MIPS_linkage_name: return "DW_AT_MIPS_linkage_name"; | |
1699 | case DW_AT_MIPS_stride: return "DW_AT_MIPS_stride"; | |
1700 | case DW_AT_MIPS_abstract_name: return "DW_AT_MIPS_abstract_name"; | |
1701 | case DW_AT_MIPS_clone_origin: return "DW_AT_MIPS_clone_origin"; | |
1702 | case DW_AT_MIPS_has_inlines: return "DW_AT_MIPS_has_inlines"; | |
1703 | ||
1704 | /* HP Extensions. */ | |
cecf136e | 1705 | case DW_AT_HP_block_index: return "DW_AT_HP_block_index"; |
e2a0d921 NC |
1706 | case DW_AT_HP_actuals_stmt_list: return "DW_AT_HP_actuals_stmt_list"; |
1707 | case DW_AT_HP_proc_per_section: return "DW_AT_HP_proc_per_section"; | |
1708 | case DW_AT_HP_raw_data_ptr: return "DW_AT_HP_raw_data_ptr"; | |
1709 | case DW_AT_HP_pass_by_reference: return "DW_AT_HP_pass_by_reference"; | |
1710 | case DW_AT_HP_opt_level: return "DW_AT_HP_opt_level"; | |
1711 | case DW_AT_HP_prof_version_id: return "DW_AT_HP_prof_version_id"; | |
1712 | case DW_AT_HP_opt_flags: return "DW_AT_HP_opt_flags"; | |
1713 | case DW_AT_HP_cold_region_low_pc: return "DW_AT_HP_cold_region_low_pc"; | |
1714 | case DW_AT_HP_cold_region_high_pc: return "DW_AT_HP_cold_region_high_pc"; | |
1715 | case DW_AT_HP_all_variables_modifiable: return "DW_AT_HP_all_variables_modifiable"; | |
1716 | case DW_AT_HP_linkage_name: return "DW_AT_HP_linkage_name"; | |
1717 | case DW_AT_HP_prof_flags: return "DW_AT_HP_prof_flags"; | |
1718 | ||
1719 | /* One value is shared by the MIPS and HP extensions: */ | |
1720 | case DW_AT_MIPS_fde: return "DW_AT_MIPS_fde or DW_AT_HP_unmodifiable"; | |
cecf136e | 1721 | |
19e6b90e L |
1722 | /* GNU extensions. */ |
1723 | case DW_AT_sf_names: return "DW_AT_sf_names"; | |
1724 | case DW_AT_src_info: return "DW_AT_src_info"; | |
1725 | case DW_AT_mac_info: return "DW_AT_mac_info"; | |
1726 | case DW_AT_src_coords: return "DW_AT_src_coords"; | |
1727 | case DW_AT_body_begin: return "DW_AT_body_begin"; | |
1728 | case DW_AT_body_end: return "DW_AT_body_end"; | |
1729 | case DW_AT_GNU_vector: return "DW_AT_GNU_vector"; | |
e2a0d921 | 1730 | |
19e6b90e L |
1731 | /* UPC extension. */ |
1732 | case DW_AT_upc_threads_scaled: return "DW_AT_upc_threads_scaled"; | |
e2a0d921 NC |
1733 | |
1734 | /* PGI (STMicroelectronics) extensions. */ | |
1735 | case DW_AT_PGI_lbase: return "DW_AT_PGI_lbase"; | |
1736 | case DW_AT_PGI_soffset: return "DW_AT_PGI_soffset"; | |
1737 | case DW_AT_PGI_lstride: return "DW_AT_PGI_lstride"; | |
1738 | ||
19e6b90e L |
1739 | default: |
1740 | { | |
1741 | static char buffer[100]; | |
1742 | ||
1743 | snprintf (buffer, sizeof (buffer), _("Unknown AT value: %lx"), | |
1744 | attribute); | |
1745 | return buffer; | |
1746 | } | |
1747 | } | |
1748 | } | |
1749 | ||
1750 | static unsigned char * | |
6e3d6dc1 NC |
1751 | read_and_display_attr (unsigned long attribute, |
1752 | unsigned long form, | |
ec4d4525 | 1753 | unsigned char * data, |
6e3d6dc1 NC |
1754 | unsigned long cu_offset, |
1755 | unsigned long pointer_size, | |
1756 | unsigned long offset_size, | |
1757 | int dwarf_version, | |
1758 | debug_info * debug_info_p, | |
1759 | int do_loc, | |
1760 | struct dwarf_section * section) | |
19e6b90e L |
1761 | { |
1762 | if (!do_loc) | |
750f03b7 | 1763 | printf (" %-18s:", get_AT_name (attribute)); |
19e6b90e L |
1764 | data = read_and_display_attr_value (attribute, form, data, cu_offset, |
1765 | pointer_size, offset_size, | |
1766 | dwarf_version, debug_info_p, | |
6e3d6dc1 | 1767 | do_loc, section); |
19e6b90e L |
1768 | if (!do_loc) |
1769 | printf ("\n"); | |
1770 | return data; | |
1771 | } | |
1772 | ||
1773 | ||
1774 | /* Process the contents of a .debug_info section. If do_loc is non-zero | |
1775 | then we are scanning for location lists and we do not want to display | |
1776 | anything to the user. */ | |
1777 | ||
1778 | static int | |
6e3d6dc1 NC |
1779 | process_debug_info (struct dwarf_section *section, |
1780 | void *file, | |
19e6b90e L |
1781 | int do_loc) |
1782 | { | |
1783 | unsigned char *start = section->start; | |
1784 | unsigned char *end = start + section->size; | |
1785 | unsigned char *section_begin; | |
1786 | unsigned int unit; | |
1787 | unsigned int num_units = 0; | |
1788 | ||
1789 | if ((do_loc || do_debug_loc || do_debug_ranges) | |
1790 | && num_debug_info_entries == 0) | |
1791 | { | |
1792 | unsigned long length; | |
1793 | ||
1794 | /* First scan the section to get the number of comp units. */ | |
1795 | for (section_begin = start, num_units = 0; section_begin < end; | |
1796 | num_units ++) | |
1797 | { | |
1798 | /* Read the first 4 bytes. For a 32-bit DWARF section, this | |
1799 | will be the length. For a 64-bit DWARF section, it'll be | |
1800 | the escape code 0xffffffff followed by an 8 byte length. */ | |
1801 | length = byte_get (section_begin, 4); | |
1802 | ||
1803 | if (length == 0xffffffff) | |
1804 | { | |
1805 | length = byte_get (section_begin + 4, 8); | |
1806 | section_begin += length + 12; | |
1807 | } | |
ec4d4525 NC |
1808 | else if (length >= 0xfffffff0 && length < 0xffffffff) |
1809 | { | |
1810 | warn (_("Reserved length value (%lx) found in section %s\n"), length, section->name); | |
1811 | return 0; | |
1812 | } | |
19e6b90e L |
1813 | else |
1814 | section_begin += length + 4; | |
aca88567 NC |
1815 | |
1816 | /* Negative values are illegal, they may even cause infinite | |
1817 | looping. This can happen if we can't accurately apply | |
1818 | relocations to an object file. */ | |
1819 | if ((signed long) length <= 0) | |
1820 | { | |
1821 | warn (_("Corrupt unit length (%lx) found in section %s\n"), length, section->name); | |
1822 | return 0; | |
1823 | } | |
19e6b90e L |
1824 | } |
1825 | ||
1826 | if (num_units == 0) | |
1827 | { | |
1828 | error (_("No comp units in %s section ?"), section->name); | |
1829 | return 0; | |
1830 | } | |
1831 | ||
1832 | /* Then allocate an array to hold the information. */ | |
1833 | debug_information = cmalloc (num_units, | |
1834 | sizeof (* debug_information)); | |
1835 | if (debug_information == NULL) | |
1836 | { | |
1837 | error (_("Not enough memory for a debug info array of %u entries"), | |
1838 | num_units); | |
1839 | return 0; | |
1840 | } | |
1841 | } | |
1842 | ||
1843 | if (!do_loc) | |
1844 | { | |
80c35038 | 1845 | printf (_("Contents of the %s section:\n\n"), section->name); |
19e6b90e L |
1846 | |
1847 | load_debug_section (str, file); | |
1848 | } | |
1849 | ||
1850 | load_debug_section (abbrev, file); | |
1851 | if (debug_displays [abbrev].section.start == NULL) | |
1852 | { | |
1853 | warn (_("Unable to locate %s section!\n"), | |
1854 | debug_displays [abbrev].section.name); | |
1855 | return 0; | |
1856 | } | |
1857 | ||
1858 | for (section_begin = start, unit = 0; start < end; unit++) | |
1859 | { | |
1860 | DWARF2_Internal_CompUnit compunit; | |
1861 | unsigned char *hdrptr; | |
1862 | unsigned char *cu_abbrev_offset_ptr; | |
1863 | unsigned char *tags; | |
1864 | int level; | |
1865 | unsigned long cu_offset; | |
1866 | int offset_size; | |
1867 | int initial_length_size; | |
1868 | ||
1869 | hdrptr = start; | |
1870 | ||
1871 | compunit.cu_length = byte_get (hdrptr, 4); | |
1872 | hdrptr += 4; | |
1873 | ||
1874 | if (compunit.cu_length == 0xffffffff) | |
1875 | { | |
1876 | compunit.cu_length = byte_get (hdrptr, 8); | |
1877 | hdrptr += 8; | |
1878 | offset_size = 8; | |
1879 | initial_length_size = 12; | |
1880 | } | |
1881 | else | |
1882 | { | |
1883 | offset_size = 4; | |
1884 | initial_length_size = 4; | |
1885 | } | |
1886 | ||
1887 | compunit.cu_version = byte_get (hdrptr, 2); | |
1888 | hdrptr += 2; | |
1889 | ||
1890 | cu_offset = start - section_begin; | |
19e6b90e L |
1891 | |
1892 | cu_abbrev_offset_ptr = hdrptr; | |
1893 | compunit.cu_abbrev_offset = byte_get (hdrptr, offset_size); | |
1894 | hdrptr += offset_size; | |
1895 | ||
1896 | compunit.cu_pointer_size = byte_get (hdrptr, 1); | |
1897 | hdrptr += 1; | |
1898 | if ((do_loc || do_debug_loc || do_debug_ranges) | |
1899 | && num_debug_info_entries == 0) | |
1900 | { | |
1901 | debug_information [unit].cu_offset = cu_offset; | |
1902 | debug_information [unit].pointer_size | |
1903 | = compunit.cu_pointer_size; | |
1904 | debug_information [unit].base_address = 0; | |
1905 | debug_information [unit].loc_offsets = NULL; | |
1906 | debug_information [unit].have_frame_base = NULL; | |
1907 | debug_information [unit].max_loc_offsets = 0; | |
1908 | debug_information [unit].num_loc_offsets = 0; | |
1909 | debug_information [unit].range_lists = NULL; | |
1910 | debug_information [unit].max_range_lists= 0; | |
1911 | debug_information [unit].num_range_lists = 0; | |
1912 | } | |
1913 | ||
19e6b90e L |
1914 | if (!do_loc) |
1915 | { | |
1916 | printf (_(" Compilation Unit @ offset 0x%lx:\n"), cu_offset); | |
cc86f28f NC |
1917 | printf (_(" Length: 0x%lx (%s)\n"), compunit.cu_length, |
1918 | initial_length_size == 8 ? "64-bit" : "32-bit"); | |
19e6b90e L |
1919 | printf (_(" Version: %d\n"), compunit.cu_version); |
1920 | printf (_(" Abbrev Offset: %ld\n"), compunit.cu_abbrev_offset); | |
1921 | printf (_(" Pointer Size: %d\n"), compunit.cu_pointer_size); | |
1922 | } | |
1923 | ||
460c89ff NS |
1924 | if (cu_offset + compunit.cu_length + initial_length_size |
1925 | > section->size) | |
1926 | { | |
ec4d4525 NC |
1927 | warn (_("Debug info is corrupted, length of CU at %lx extends beyond end of section (length = %lx)\n"), |
1928 | cu_offset, compunit.cu_length); | |
460c89ff NS |
1929 | break; |
1930 | } | |
1931 | tags = hdrptr; | |
1932 | start += compunit.cu_length + initial_length_size; | |
1933 | ||
19e6b90e L |
1934 | if (compunit.cu_version != 2 && compunit.cu_version != 3) |
1935 | { | |
1febe64d NC |
1936 | warn (_("CU at offset %lx contains corrupt or unsupported version number: %d.\n"), |
1937 | cu_offset, compunit.cu_version); | |
19e6b90e L |
1938 | continue; |
1939 | } | |
1940 | ||
1941 | free_abbrevs (); | |
1942 | ||
bfe2612a L |
1943 | /* Process the abbrevs used by this compilation unit. DWARF |
1944 | sections under Mach-O have non-zero addresses. */ | |
460c89ff | 1945 | if (compunit.cu_abbrev_offset >= debug_displays [abbrev].section.size) |
ec4d4525 NC |
1946 | warn (_("Debug info is corrupted, abbrev offset (%lx) is larger than abbrev section size (%lx)\n"), |
1947 | (unsigned long) compunit.cu_abbrev_offset, | |
1948 | (unsigned long) debug_displays [abbrev].section.size); | |
460c89ff NS |
1949 | else |
1950 | process_abbrev_section | |
1951 | ((unsigned char *) debug_displays [abbrev].section.start | |
1952 | + compunit.cu_abbrev_offset - debug_displays [abbrev].section.address, | |
1953 | (unsigned char *) debug_displays [abbrev].section.start | |
1954 | + debug_displays [abbrev].section.size); | |
19e6b90e L |
1955 | |
1956 | level = 0; | |
1957 | while (tags < start) | |
1958 | { | |
1959 | unsigned int bytes_read; | |
1960 | unsigned long abbrev_number; | |
ec4d4525 | 1961 | unsigned long die_offset; |
19e6b90e L |
1962 | abbrev_entry *entry; |
1963 | abbrev_attr *attr; | |
1964 | ||
ec4d4525 NC |
1965 | die_offset = tags - section_begin; |
1966 | ||
19e6b90e L |
1967 | abbrev_number = read_leb128 (tags, & bytes_read, 0); |
1968 | tags += bytes_read; | |
1969 | ||
ec4d4525 | 1970 | /* A null DIE marks the end of a list of siblings. */ |
19e6b90e L |
1971 | if (abbrev_number == 0) |
1972 | { | |
1973 | --level; | |
ec4d4525 NC |
1974 | if (level < 0) |
1975 | { | |
1976 | static unsigned num_bogus_warns = 0; | |
1977 | ||
1978 | if (num_bogus_warns < 3) | |
1979 | { | |
1980 | warn (_("Bogus end-of-siblings marker detected at offset %lx in .debug_info section\n"), | |
1981 | die_offset); | |
1982 | num_bogus_warns ++; | |
1983 | if (num_bogus_warns == 3) | |
1984 | warn (_("Further warnings about bogus end-of-sibling markers suppressed\n")); | |
1985 | } | |
1986 | } | |
19e6b90e L |
1987 | continue; |
1988 | } | |
1989 | ||
4b78141a NC |
1990 | if (!do_loc) |
1991 | printf (_(" <%d><%lx>: Abbrev Number: %lu"), | |
ec4d4525 | 1992 | level, die_offset, abbrev_number); |
cecf136e | 1993 | |
19e6b90e L |
1994 | /* Scan through the abbreviation list until we reach the |
1995 | correct entry. */ | |
1996 | for (entry = first_abbrev; | |
1997 | entry && entry->entry != abbrev_number; | |
1998 | entry = entry->next) | |
1999 | continue; | |
2000 | ||
2001 | if (entry == NULL) | |
2002 | { | |
4b78141a NC |
2003 | if (!do_loc) |
2004 | { | |
2005 | printf ("\n"); | |
2006 | fflush (stdout); | |
2007 | } | |
cc86f28f NC |
2008 | warn (_("DIE at offset %lx refers to abbreviation number %lu which does not exist\n"), |
2009 | die_offset, abbrev_number); | |
19e6b90e L |
2010 | return 0; |
2011 | } | |
2012 | ||
2013 | if (!do_loc) | |
4b78141a | 2014 | printf (_(" (%s)\n"), get_TAG_name (entry->tag)); |
cecf136e | 2015 | |
19e6b90e L |
2016 | switch (entry->tag) |
2017 | { | |
2018 | default: | |
2019 | need_base_address = 0; | |
2020 | break; | |
2021 | case DW_TAG_compile_unit: | |
2022 | need_base_address = 1; | |
2023 | break; | |
2024 | case DW_TAG_entry_point: | |
19e6b90e L |
2025 | case DW_TAG_subprogram: |
2026 | need_base_address = 0; | |
2027 | /* Assuming that there is no DW_AT_frame_base. */ | |
2028 | have_frame_base = 0; | |
2029 | break; | |
2030 | } | |
2031 | ||
2032 | for (attr = entry->first_attr; attr; attr = attr->next) | |
4b78141a NC |
2033 | { |
2034 | if (! do_loc) | |
2035 | /* Show the offset from where the tag was extracted. */ | |
750f03b7 | 2036 | printf (" <%2lx>", (unsigned long)(tags - section_begin)); |
4b78141a NC |
2037 | |
2038 | tags = read_and_display_attr (attr->attribute, | |
2039 | attr->form, | |
2040 | tags, cu_offset, | |
2041 | compunit.cu_pointer_size, | |
2042 | offset_size, | |
2043 | compunit.cu_version, | |
ec4d4525 | 2044 | debug_information + unit, |
6e3d6dc1 | 2045 | do_loc, section); |
4b78141a | 2046 | } |
cecf136e | 2047 | |
19e6b90e L |
2048 | if (entry->children) |
2049 | ++level; | |
2050 | } | |
2051 | } | |
cecf136e | 2052 | |
19e6b90e L |
2053 | /* Set num_debug_info_entries here so that it can be used to check if |
2054 | we need to process .debug_loc and .debug_ranges sections. */ | |
2055 | if ((do_loc || do_debug_loc || do_debug_ranges) | |
2056 | && num_debug_info_entries == 0) | |
2057 | num_debug_info_entries = num_units; | |
cecf136e | 2058 | |
19e6b90e L |
2059 | if (!do_loc) |
2060 | { | |
2061 | printf ("\n"); | |
2062 | } | |
cecf136e | 2063 | |
19e6b90e L |
2064 | return 1; |
2065 | } | |
2066 | ||
2067 | /* Locate and scan the .debug_info section in the file and record the pointer | |
2068 | sizes and offsets for the compilation units in it. Usually an executable | |
2069 | will have just one pointer size, but this is not guaranteed, and so we try | |
2070 | not to make any assumptions. Returns zero upon failure, or the number of | |
2071 | compilation units upon success. */ | |
2072 | ||
2073 | static unsigned int | |
2074 | load_debug_info (void * file) | |
2075 | { | |
2076 | /* Reset the last pointer size so that we can issue correct error | |
2077 | messages if we are displaying the contents of more than one section. */ | |
2078 | last_pointer_size = 0; | |
2079 | warned_about_missing_comp_units = FALSE; | |
2080 | ||
1febe64d NC |
2081 | /* If we have already tried and failed to load the .debug_info |
2082 | section then do not bother to repear the task. */ | |
cc86f28f | 2083 | if (num_debug_info_entries == DEBUG_INFO_UNAVAILABLE) |
1febe64d NC |
2084 | return 0; |
2085 | ||
19e6b90e L |
2086 | /* If we already have the information there is nothing else to do. */ |
2087 | if (num_debug_info_entries > 0) | |
2088 | return num_debug_info_entries; | |
2089 | ||
2090 | if (load_debug_section (info, file) | |
2091 | && process_debug_info (&debug_displays [info].section, file, 1)) | |
2092 | return num_debug_info_entries; | |
1febe64d | 2093 | |
cc86f28f | 2094 | num_debug_info_entries = DEBUG_INFO_UNAVAILABLE; |
1febe64d | 2095 | return 0; |
19e6b90e L |
2096 | } |
2097 | ||
19e6b90e | 2098 | static int |
a262ae96 NC |
2099 | display_debug_lines_raw (struct dwarf_section *section, |
2100 | unsigned char *data, | |
2101 | unsigned char *end) | |
19e6b90e L |
2102 | { |
2103 | unsigned char *start = section->start; | |
19e6b90e | 2104 | |
a262ae96 NC |
2105 | printf (_("Raw dump of debug contents of section %s:\n\n"), |
2106 | section->name); | |
19e6b90e L |
2107 | |
2108 | while (data < end) | |
2109 | { | |
2110 | DWARF2_Internal_LineInfo info; | |
2111 | unsigned char *standard_opcodes; | |
2112 | unsigned char *end_of_sequence; | |
2113 | unsigned char *hdrptr; | |
6523721c | 2114 | unsigned long hdroff; |
19e6b90e L |
2115 | int initial_length_size; |
2116 | int offset_size; | |
2117 | int i; | |
2118 | ||
2119 | hdrptr = data; | |
6523721c | 2120 | hdroff = hdrptr - start; |
19e6b90e L |
2121 | |
2122 | /* Check the length of the block. */ | |
2123 | info.li_length = byte_get (hdrptr, 4); | |
2124 | hdrptr += 4; | |
2125 | ||
2126 | if (info.li_length == 0xffffffff) | |
2127 | { | |
2128 | /* This section is 64-bit DWARF 3. */ | |
2129 | info.li_length = byte_get (hdrptr, 8); | |
2130 | hdrptr += 8; | |
2131 | offset_size = 8; | |
2132 | initial_length_size = 12; | |
2133 | } | |
2134 | else | |
2135 | { | |
2136 | offset_size = 4; | |
2137 | initial_length_size = 4; | |
2138 | } | |
2139 | ||
2140 | if (info.li_length + initial_length_size > section->size) | |
2141 | { | |
2142 | warn | |
2143 | (_("The line info appears to be corrupt - the section is too small\n")); | |
2144 | return 0; | |
2145 | } | |
2146 | ||
2147 | /* Check its version number. */ | |
2148 | info.li_version = byte_get (hdrptr, 2); | |
2149 | hdrptr += 2; | |
2150 | if (info.li_version != 2 && info.li_version != 3) | |
2151 | { | |
2152 | warn (_("Only DWARF version 2 and 3 line info is currently supported.\n")); | |
2153 | return 0; | |
2154 | } | |
2155 | ||
2156 | info.li_prologue_length = byte_get (hdrptr, offset_size); | |
2157 | hdrptr += offset_size; | |
2158 | info.li_min_insn_length = byte_get (hdrptr, 1); | |
2159 | hdrptr++; | |
2160 | info.li_default_is_stmt = byte_get (hdrptr, 1); | |
2161 | hdrptr++; | |
2162 | info.li_line_base = byte_get (hdrptr, 1); | |
2163 | hdrptr++; | |
2164 | info.li_line_range = byte_get (hdrptr, 1); | |
2165 | hdrptr++; | |
2166 | info.li_opcode_base = byte_get (hdrptr, 1); | |
2167 | hdrptr++; | |
2168 | ||
2169 | /* Sign extend the line base field. */ | |
2170 | info.li_line_base <<= 24; | |
2171 | info.li_line_base >>= 24; | |
2172 | ||
6523721c | 2173 | printf (_(" Offset: 0x%lx\n"), hdroff); |
19e6b90e L |
2174 | printf (_(" Length: %ld\n"), info.li_length); |
2175 | printf (_(" DWARF Version: %d\n"), info.li_version); | |
2176 | printf (_(" Prologue Length: %d\n"), info.li_prologue_length); | |
2177 | printf (_(" Minimum Instruction Length: %d\n"), info.li_min_insn_length); | |
2178 | printf (_(" Initial value of 'is_stmt': %d\n"), info.li_default_is_stmt); | |
2179 | printf (_(" Line Base: %d\n"), info.li_line_base); | |
2180 | printf (_(" Line Range: %d\n"), info.li_line_range); | |
2181 | printf (_(" Opcode Base: %d\n"), info.li_opcode_base); | |
19e6b90e L |
2182 | |
2183 | end_of_sequence = data + info.li_length + initial_length_size; | |
2184 | ||
2185 | reset_state_machine (info.li_default_is_stmt); | |
2186 | ||
2187 | /* Display the contents of the Opcodes table. */ | |
2188 | standard_opcodes = hdrptr; | |
2189 | ||
2190 | printf (_("\n Opcodes:\n")); | |
2191 | ||
2192 | for (i = 1; i < info.li_opcode_base; i++) | |
2193 | printf (_(" Opcode %d has %d args\n"), i, standard_opcodes[i - 1]); | |
2194 | ||
2195 | /* Display the contents of the Directory table. */ | |
2196 | data = standard_opcodes + info.li_opcode_base - 1; | |
2197 | ||
2198 | if (*data == 0) | |
2199 | printf (_("\n The Directory Table is empty.\n")); | |
2200 | else | |
2201 | { | |
2202 | printf (_("\n The Directory Table:\n")); | |
2203 | ||
2204 | while (*data != 0) | |
2205 | { | |
2206 | printf (_(" %s\n"), data); | |
2207 | ||
2208 | data += strlen ((char *) data) + 1; | |
2209 | } | |
2210 | } | |
2211 | ||
2212 | /* Skip the NUL at the end of the table. */ | |
2213 | data++; | |
2214 | ||
2215 | /* Display the contents of the File Name table. */ | |
2216 | if (*data == 0) | |
2217 | printf (_("\n The File Name Table is empty.\n")); | |
2218 | else | |
2219 | { | |
2220 | printf (_("\n The File Name Table:\n")); | |
2221 | printf (_(" Entry\tDir\tTime\tSize\tName\n")); | |
2222 | ||
2223 | while (*data != 0) | |
2224 | { | |
2225 | unsigned char *name; | |
2226 | unsigned int bytes_read; | |
2227 | ||
2228 | printf (_(" %d\t"), ++state_machine_regs.last_file_entry); | |
2229 | name = data; | |
2230 | ||
2231 | data += strlen ((char *) data) + 1; | |
2232 | ||
2233 | printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0)); | |
2234 | data += bytes_read; | |
2235 | printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0)); | |
2236 | data += bytes_read; | |
2237 | printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0)); | |
2238 | data += bytes_read; | |
2239 | printf (_("%s\n"), name); | |
2240 | } | |
2241 | } | |
2242 | ||
2243 | /* Skip the NUL at the end of the table. */ | |
2244 | data++; | |
2245 | ||
2246 | /* Now display the statements. */ | |
2247 | printf (_("\n Line Number Statements:\n")); | |
2248 | ||
2249 | while (data < end_of_sequence) | |
2250 | { | |
2251 | unsigned char op_code; | |
2252 | int adv; | |
2253 | unsigned long int uladv; | |
2254 | unsigned int bytes_read; | |
2255 | ||
2256 | op_code = *data++; | |
2257 | ||
2258 | if (op_code >= info.li_opcode_base) | |
2259 | { | |
2260 | op_code -= info.li_opcode_base; | |
2261 | uladv = (op_code / info.li_line_range) * info.li_min_insn_length; | |
2262 | state_machine_regs.address += uladv; | |
2263 | printf (_(" Special opcode %d: advance Address by %lu to 0x%lx"), | |
2264 | op_code, uladv, state_machine_regs.address); | |
2265 | adv = (op_code % info.li_line_range) + info.li_line_base; | |
2266 | state_machine_regs.line += adv; | |
2267 | printf (_(" and Line by %d to %d\n"), | |
2268 | adv, state_machine_regs.line); | |
2269 | } | |
2270 | else switch (op_code) | |
2271 | { | |
2272 | case DW_LNS_extended_op: | |
1617e571 | 2273 | data += process_extended_line_op (data, info.li_default_is_stmt); |
19e6b90e L |
2274 | break; |
2275 | ||
2276 | case DW_LNS_copy: | |
2277 | printf (_(" Copy\n")); | |
2278 | break; | |
2279 | ||
2280 | case DW_LNS_advance_pc: | |
2281 | uladv = read_leb128 (data, & bytes_read, 0); | |
2282 | uladv *= info.li_min_insn_length; | |
2283 | data += bytes_read; | |
2284 | state_machine_regs.address += uladv; | |
2285 | printf (_(" Advance PC by %lu to 0x%lx\n"), uladv, | |
2286 | state_machine_regs.address); | |
2287 | break; | |
2288 | ||
2289 | case DW_LNS_advance_line: | |
2290 | adv = read_leb128 (data, & bytes_read, 1); | |
2291 | data += bytes_read; | |
2292 | state_machine_regs.line += adv; | |
2293 | printf (_(" Advance Line by %d to %d\n"), adv, | |
2294 | state_machine_regs.line); | |
2295 | break; | |
2296 | ||
2297 | case DW_LNS_set_file: | |
2298 | adv = read_leb128 (data, & bytes_read, 0); | |
2299 | data += bytes_read; | |
2300 | printf (_(" Set File Name to entry %d in the File Name Table\n"), | |
2301 | adv); | |
2302 | state_machine_regs.file = adv; | |
2303 | break; | |
2304 | ||
2305 | case DW_LNS_set_column: | |
2306 | uladv = read_leb128 (data, & bytes_read, 0); | |
2307 | data += bytes_read; | |
2308 | printf (_(" Set column to %lu\n"), uladv); | |
2309 | state_machine_regs.column = uladv; | |
2310 | break; | |
2311 | ||
2312 | case DW_LNS_negate_stmt: | |
2313 | adv = state_machine_regs.is_stmt; | |
2314 | adv = ! adv; | |
2315 | printf (_(" Set is_stmt to %d\n"), adv); | |
2316 | state_machine_regs.is_stmt = adv; | |
2317 | break; | |
2318 | ||
2319 | case DW_LNS_set_basic_block: | |
2320 | printf (_(" Set basic block\n")); | |
2321 | state_machine_regs.basic_block = 1; | |
2322 | break; | |
2323 | ||
2324 | case DW_LNS_const_add_pc: | |
2325 | uladv = (((255 - info.li_opcode_base) / info.li_line_range) | |
2326 | * info.li_min_insn_length); | |
2327 | state_machine_regs.address += uladv; | |
2328 | printf (_(" Advance PC by constant %lu to 0x%lx\n"), uladv, | |
2329 | state_machine_regs.address); | |
2330 | break; | |
2331 | ||
2332 | case DW_LNS_fixed_advance_pc: | |
2333 | uladv = byte_get (data, 2); | |
2334 | data += 2; | |
2335 | state_machine_regs.address += uladv; | |
2336 | printf (_(" Advance PC by fixed size amount %lu to 0x%lx\n"), | |
2337 | uladv, state_machine_regs.address); | |
2338 | break; | |
2339 | ||
2340 | case DW_LNS_set_prologue_end: | |
2341 | printf (_(" Set prologue_end to true\n")); | |
2342 | break; | |
2343 | ||
2344 | case DW_LNS_set_epilogue_begin: | |
2345 | printf (_(" Set epilogue_begin to true\n")); | |
2346 | break; | |
2347 | ||
2348 | case DW_LNS_set_isa: | |
2349 | uladv = read_leb128 (data, & bytes_read, 0); | |
2350 | data += bytes_read; | |
2351 | printf (_(" Set ISA to %lu\n"), uladv); | |
2352 | break; | |
2353 | ||
2354 | default: | |
2355 | printf (_(" Unknown opcode %d with operands: "), op_code); | |
2356 | ||
2357 | for (i = standard_opcodes[op_code - 1]; i > 0 ; --i) | |
2358 | { | |
2359 | printf ("0x%lx%s", read_leb128 (data, &bytes_read, 0), | |
2360 | i == 1 ? "" : ", "); | |
2361 | data += bytes_read; | |
2362 | } | |
2363 | putchar ('\n'); | |
2364 | break; | |
2365 | } | |
2366 | } | |
2367 | putchar ('\n'); | |
2368 | } | |
2369 | ||
2370 | return 1; | |
2371 | } | |
2372 | ||
a262ae96 NC |
2373 | typedef struct |
2374 | { | |
2375 | unsigned char *name; | |
2376 | unsigned int directory_index; | |
2377 | unsigned int modification_date; | |
2378 | unsigned int length; | |
2379 | } File_Entry; | |
2380 | ||
2381 | /* Output a decoded representation of the .debug_line section. */ | |
2382 | ||
2383 | static int | |
2384 | display_debug_lines_decoded (struct dwarf_section *section, | |
2385 | unsigned char *data, | |
2386 | unsigned char *end) | |
2387 | { | |
2388 | printf (_("Decoded dump of debug contents of section %s:\n\n"), | |
2389 | section->name); | |
2390 | ||
2391 | while (data < end) | |
2392 | { | |
2393 | /* This loop amounts to one iteration per compilation unit. */ | |
2394 | DWARF2_Internal_LineInfo info; | |
2395 | unsigned char *standard_opcodes; | |
2396 | unsigned char *end_of_sequence; | |
2397 | unsigned char *hdrptr; | |
2398 | int initial_length_size; | |
2399 | int offset_size; | |
2400 | int i; | |
2401 | File_Entry *file_table = NULL; | |
2402 | unsigned char **directory_table = NULL; | |
2403 | unsigned int prev_line = 0; | |
2404 | ||
2405 | hdrptr = data; | |
2406 | ||
2407 | /* Extract information from the Line Number Program Header. | |
2408 | (section 6.2.4 in the Dwarf3 doc). */ | |
2409 | ||
2410 | /* Get the length of this CU's line number information block. */ | |
2411 | info.li_length = byte_get (hdrptr, 4); | |
2412 | hdrptr += 4; | |
2413 | ||
2414 | if (info.li_length == 0xffffffff) | |
2415 | { | |
2416 | /* This section is 64-bit DWARF 3. */ | |
2417 | info.li_length = byte_get (hdrptr, 8); | |
2418 | hdrptr += 8; | |
2419 | offset_size = 8; | |
2420 | initial_length_size = 12; | |
2421 | } | |
2422 | else | |
2423 | { | |
2424 | offset_size = 4; | |
2425 | initial_length_size = 4; | |
2426 | } | |
2427 | ||
2428 | if (info.li_length + initial_length_size > section->size) | |
2429 | { | |
2430 | warn (_("The line info appears to be corrupt - " | |
2431 | "the section is too small\n")); | |
2432 | return 0; | |
2433 | } | |
2434 | ||
2435 | /* Get this CU's Line Number Block version number. */ | |
2436 | info.li_version = byte_get (hdrptr, 2); | |
2437 | hdrptr += 2; | |
2438 | if (info.li_version != 2 && info.li_version != 3) | |
2439 | { | |
2440 | warn (_("Only DWARF version 2 and 3 line info is currently " | |
2441 | "supported.\n")); | |
2442 | return 0; | |
2443 | } | |
2444 | ||
2445 | info.li_prologue_length = byte_get (hdrptr, offset_size); | |
2446 | hdrptr += offset_size; | |
2447 | info.li_min_insn_length = byte_get (hdrptr, 1); | |
2448 | hdrptr++; | |
2449 | info.li_default_is_stmt = byte_get (hdrptr, 1); | |
2450 | hdrptr++; | |
2451 | info.li_line_base = byte_get (hdrptr, 1); | |
2452 | hdrptr++; | |
2453 | info.li_line_range = byte_get (hdrptr, 1); | |
2454 | hdrptr++; | |
2455 | info.li_opcode_base = byte_get (hdrptr, 1); | |
2456 | hdrptr++; | |
2457 | ||
2458 | /* Sign extend the line base field. */ | |
2459 | info.li_line_base <<= 24; | |
2460 | info.li_line_base >>= 24; | |
2461 | ||
2462 | /* Find the end of this CU's Line Number Information Block. */ | |
2463 | end_of_sequence = data + info.li_length + initial_length_size; | |
2464 | ||
2465 | reset_state_machine (info.li_default_is_stmt); | |
2466 | ||
2467 | /* Save a pointer to the contents of the Opcodes table. */ | |
2468 | standard_opcodes = hdrptr; | |
2469 | ||
2470 | /* Traverse the Directory table just to count entries. */ | |
2471 | data = standard_opcodes + info.li_opcode_base - 1; | |
2472 | if (*data != 0) | |
2473 | { | |
2474 | unsigned int n_directories = 0; | |
2475 | unsigned char *ptr_directory_table = data; | |
2476 | int i; | |
2477 | ||
2478 | while (*data != 0) | |
2479 | { | |
2480 | data += strlen ((char *) data) + 1; | |
2481 | n_directories++; | |
2482 | } | |
2483 | ||
2484 | /* Go through the directory table again to save the directories. */ | |
2485 | directory_table = xmalloc (n_directories * sizeof (unsigned char *)); | |
2486 | ||
2487 | i = 0; | |
2488 | while (*ptr_directory_table != 0) | |
2489 | { | |
2490 | directory_table[i] = ptr_directory_table; | |
2491 | ptr_directory_table += strlen ((char *) ptr_directory_table) + 1; | |
2492 | i++; | |
2493 | } | |
2494 | } | |
2495 | /* Skip the NUL at the end of the table. */ | |
2496 | data++; | |
2497 | ||
2498 | /* Traverse the File Name table just to count the entries. */ | |
2499 | if (*data != 0) | |
2500 | { | |
2501 | unsigned int n_files = 0; | |
2502 | unsigned char *ptr_file_name_table = data; | |
2503 | int i; | |
2504 | ||
2505 | while (*data != 0) | |
2506 | { | |
2507 | unsigned int bytes_read; | |
2508 | ||
2509 | /* Skip Name, directory index, last modification time and length | |
2510 | of file. */ | |
2511 | data += strlen ((char *) data) + 1; | |
2512 | read_leb128 (data, & bytes_read, 0); | |
2513 | data += bytes_read; | |
2514 | read_leb128 (data, & bytes_read, 0); | |
2515 | data += bytes_read; | |
2516 | read_leb128 (data, & bytes_read, 0); | |
2517 | data += bytes_read; | |
2518 | ||
2519 | n_files++; | |
2520 | } | |
2521 | ||
2522 | /* Go through the file table again to save the strings. */ | |
2523 | file_table = xmalloc (n_files * sizeof (File_Entry)); | |
2524 | ||
2525 | i = 0; | |
2526 | while (*ptr_file_name_table != 0) | |
2527 | { | |
2528 | unsigned int bytes_read; | |
2529 | ||
2530 | file_table[i].name = ptr_file_name_table; | |
2531 | ptr_file_name_table += strlen ((char *) ptr_file_name_table) + 1; | |
2532 | ||
2533 | /* We are not interested in directory, time or size. */ | |
2534 | file_table[i].directory_index = read_leb128 (ptr_file_name_table, | |
2535 | & bytes_read, 0); | |
2536 | ptr_file_name_table += bytes_read; | |
2537 | file_table[i].modification_date = read_leb128 (ptr_file_name_table, | |
2538 | & bytes_read, 0); | |
2539 | ptr_file_name_table += bytes_read; | |
2540 | file_table[i].length = read_leb128 (ptr_file_name_table, & bytes_read, 0); | |
2541 | ptr_file_name_table += bytes_read; | |
2542 | i++; | |
2543 | } | |
2544 | i = 0; | |
2545 | ||
2546 | /* Print the Compilation Unit's name and a header. */ | |
2547 | if (directory_table == NULL) | |
2548 | { | |
2549 | printf (_("CU: %s:\n"), file_table[0].name); | |
2550 | printf (_("File name Line number Starting address\n")); | |
2551 | } | |
2552 | else | |
2553 | { | |
2554 | if (do_wide || strlen ((char *) directory_table[0]) < 76) | |
2555 | { | |
2556 | printf (_("CU: %s/%s:\n"), directory_table[0], | |
2557 | file_table[0].name); | |
2558 | } | |
2559 | else | |
2560 | { | |
2561 | printf (_("%s:\n"), file_table[0].name); | |
2562 | } | |
2563 | printf (_("File name Line number Starting address\n")); | |
2564 | } | |
2565 | } | |
2566 | ||
2567 | /* Skip the NUL at the end of the table. */ | |
2568 | data++; | |
2569 | ||
2570 | /* This loop iterates through the Dwarf Line Number Program. */ | |
2571 | while (data < end_of_sequence) | |
2572 | { | |
2573 | unsigned char op_code; | |
2574 | int adv; | |
2575 | unsigned long int uladv; | |
2576 | unsigned int bytes_read; | |
2577 | int is_special_opcode = 0; | |
2578 | ||
2579 | op_code = *data++; | |
2580 | prev_line = state_machine_regs.line; | |
2581 | ||
2582 | if (op_code >= info.li_opcode_base) | |
2583 | { | |
2584 | op_code -= info.li_opcode_base; | |
2585 | uladv = (op_code / info.li_line_range) * info.li_min_insn_length; | |
2586 | state_machine_regs.address += uladv; | |
2587 | ||
2588 | adv = (op_code % info.li_line_range) + info.li_line_base; | |
2589 | state_machine_regs.line += adv; | |
2590 | is_special_opcode = 1; | |
2591 | } | |
2592 | else switch (op_code) | |
2593 | { | |
2594 | case DW_LNS_extended_op: | |
2595 | { | |
2596 | unsigned int ext_op_code_len; | |
2597 | unsigned int bytes_read; | |
2598 | unsigned char ext_op_code; | |
2599 | unsigned char *op_code_data = data; | |
2600 | ||
2601 | ext_op_code_len = read_leb128 (op_code_data, &bytes_read, 0); | |
2602 | op_code_data += bytes_read; | |
2603 | ||
2604 | if (ext_op_code_len == 0) | |
2605 | { | |
2606 | warn (_("badly formed extended line op encountered!\n")); | |
2607 | break; | |
2608 | } | |
2609 | ext_op_code_len += bytes_read; | |
2610 | ext_op_code = *op_code_data++; | |
2611 | ||
2612 | switch (ext_op_code) | |
2613 | { | |
2614 | case DW_LNE_end_sequence: | |
2615 | reset_state_machine (info.li_default_is_stmt); | |
2616 | break; | |
2617 | case DW_LNE_set_address: | |
2618 | state_machine_regs.address = | |
2619 | byte_get (op_code_data, ext_op_code_len - bytes_read - 1); | |
2620 | break; | |
2621 | case DW_LNE_define_file: | |
2622 | { | |
2623 | unsigned int dir_index = 0; | |
2624 | ||
2625 | ++state_machine_regs.last_file_entry; | |
2626 | op_code_data += strlen ((char *) op_code_data) + 1; | |
2627 | dir_index = read_leb128 (op_code_data, & bytes_read, 0); | |
2628 | op_code_data += bytes_read; | |
2629 | read_leb128 (op_code_data, & bytes_read, 0); | |
2630 | op_code_data += bytes_read; | |
2631 | read_leb128 (op_code_data, & bytes_read, 0); | |
2632 | ||
2633 | printf (_("%s:\n"), directory_table[dir_index]); | |
2634 | break; | |
2635 | } | |
2636 | default: | |
2637 | printf (_("UNKNOWN: length %d\n"), ext_op_code_len - bytes_read); | |
2638 | break; | |
2639 | } | |
2640 | data += ext_op_code_len; | |
2641 | break; | |
2642 | } | |
2643 | case DW_LNS_copy: | |
2644 | break; | |
2645 | ||
2646 | case DW_LNS_advance_pc: | |
2647 | uladv = read_leb128 (data, & bytes_read, 0); | |
2648 | uladv *= info.li_min_insn_length; | |
2649 | data += bytes_read; | |
2650 | state_machine_regs.address += uladv; | |
2651 | break; | |
2652 | ||
2653 | case DW_LNS_advance_line: | |
2654 | adv = read_leb128 (data, & bytes_read, 1); | |
2655 | data += bytes_read; | |
2656 | state_machine_regs.line += adv; | |
2657 | break; | |
2658 | ||
2659 | case DW_LNS_set_file: | |
2660 | adv = read_leb128 (data, & bytes_read, 0); | |
2661 | data += bytes_read; | |
2662 | state_machine_regs.file = adv; | |
2663 | if (file_table[state_machine_regs.file - 1].directory_index == 0) | |
2664 | { | |
2665 | /* If directory index is 0, that means current directory. */ | |
2666 | printf (_("\n./%s:[++]\n"), | |
2667 | file_table[state_machine_regs.file - 1].name); | |
2668 | } | |
2669 | else | |
2670 | { | |
2671 | /* The directory index starts counting at 1. */ | |
2672 | printf (_("\n%s/%s:\n"), | |
2673 | directory_table[file_table[state_machine_regs.file - 1].directory_index - 1], | |
2674 | file_table[state_machine_regs.file - 1].name); | |
2675 | } | |
2676 | break; | |
2677 | ||
2678 | case DW_LNS_set_column: | |
2679 | uladv = read_leb128 (data, & bytes_read, 0); | |
2680 | data += bytes_read; | |
2681 | state_machine_regs.column = uladv; | |
2682 | break; | |
2683 | ||
2684 | case DW_LNS_negate_stmt: | |
2685 | adv = state_machine_regs.is_stmt; | |
2686 | adv = ! adv; | |
2687 | state_machine_regs.is_stmt = adv; | |
2688 | break; | |
2689 | ||
2690 | case DW_LNS_set_basic_block: | |
2691 | state_machine_regs.basic_block = 1; | |
2692 | break; | |
2693 | ||
2694 | case DW_LNS_const_add_pc: | |
2695 | uladv = (((255 - info.li_opcode_base) / info.li_line_range) | |
2696 | * info.li_min_insn_length); | |
2697 | state_machine_regs.address += uladv; | |
2698 | break; | |
2699 | ||
2700 | case DW_LNS_fixed_advance_pc: | |
2701 | uladv = byte_get (data, 2); | |
2702 | data += 2; | |
2703 | state_machine_regs.address += uladv; | |
2704 | break; | |
2705 | ||
2706 | case DW_LNS_set_prologue_end: | |
2707 | break; | |
2708 | ||
2709 | case DW_LNS_set_epilogue_begin: | |
2710 | break; | |
2711 | ||
2712 | case DW_LNS_set_isa: | |
2713 | uladv = read_leb128 (data, & bytes_read, 0); | |
2714 | data += bytes_read; | |
2715 | printf (_(" Set ISA to %lu\n"), uladv); | |
2716 | break; | |
2717 | ||
2718 | default: | |
2719 | printf (_(" Unknown opcode %d with operands: "), op_code); | |
2720 | ||
2721 | for (i = standard_opcodes[op_code - 1]; i > 0 ; --i) | |
2722 | { | |
2723 | printf ("0x%lx%s", read_leb128 (data, &bytes_read, 0), | |
2724 | i == 1 ? "" : ", "); | |
2725 | data += bytes_read; | |
2726 | } | |
2727 | putchar ('\n'); | |
2728 | break; | |
2729 | } | |
2730 | ||
2731 | /* Only Special opcodes, DW_LNS_copy and DW_LNE_end_sequence adds a row | |
2732 | to the DWARF address/line matrix. */ | |
2733 | if ((is_special_opcode) || (op_code == DW_LNE_end_sequence) | |
2734 | || (op_code == DW_LNS_copy)) | |
2735 | { | |
2736 | const unsigned int MAX_FILENAME_LENGTH = 35; | |
2737 | char *fileName = (char *)file_table[state_machine_regs.file - 1].name; | |
2738 | char *newFileName = NULL; | |
2739 | size_t fileNameLength = strlen (fileName); | |
2740 | ||
2741 | if ((fileNameLength > MAX_FILENAME_LENGTH) && (!do_wide)) | |
2742 | { | |
2743 | newFileName = xmalloc (MAX_FILENAME_LENGTH + 1); | |
2744 | /* Truncate file name */ | |
2745 | strncpy (newFileName, | |
2746 | fileName + fileNameLength - MAX_FILENAME_LENGTH, | |
2747 | MAX_FILENAME_LENGTH + 1); | |
2748 | } | |
2749 | else | |
2750 | { | |
2751 | newFileName = xmalloc (fileNameLength + 1); | |
2752 | strncpy (newFileName, fileName, fileNameLength + 1); | |
2753 | } | |
2754 | ||
2755 | if (!do_wide || (fileNameLength <= MAX_FILENAME_LENGTH)) | |
2756 | { | |
2757 | printf (_("%-35s %11d %#18lx\n"), newFileName, | |
2758 | state_machine_regs.line, state_machine_regs.address); | |
2759 | } | |
2760 | else | |
2761 | { | |
2762 | printf (_("%s %11d %#18lx\n"), newFileName, | |
2763 | state_machine_regs.line, state_machine_regs.address); | |
2764 | } | |
2765 | ||
2766 | if (op_code == DW_LNE_end_sequence) | |
2767 | printf ("\n"); | |
2768 | ||
2769 | free (newFileName); | |
2770 | } | |
2771 | } | |
2772 | free (file_table); | |
2773 | file_table = NULL; | |
2774 | free (directory_table); | |
2775 | directory_table = NULL; | |
2776 | putchar ('\n'); | |
2777 | } | |
2778 | ||
2779 | return 1; | |
2780 | } | |
2781 | ||
2782 | static int | |
2783 | display_debug_lines (struct dwarf_section *section, void *file) | |
2784 | { | |
2785 | unsigned char *data = section->start; | |
2786 | unsigned char *end = data + section->size; | |
4cb93e3b TG |
2787 | int retValRaw = 1; |
2788 | int retValDecoded = 1; | |
a262ae96 NC |
2789 | |
2790 | if (load_debug_info (file) == 0) | |
2791 | { | |
2792 | warn (_("Unable to load/parse the .debug_info section, so cannot interpret the %s section.\n"), | |
2793 | section->name); | |
2794 | return 0; | |
2795 | } | |
2796 | ||
4cb93e3b | 2797 | if (do_debug_lines & FLAG_DEBUG_LINES_RAW) |
a262ae96 NC |
2798 | retValRaw = display_debug_lines_raw (section, data, end); |
2799 | ||
4cb93e3b | 2800 | if (do_debug_lines & FLAG_DEBUG_LINES_DECODED) |
a262ae96 NC |
2801 | retValDecoded = display_debug_lines_decoded (section, data, end); |
2802 | ||
4cb93e3b | 2803 | if (!retValRaw || !retValDecoded) |
a262ae96 NC |
2804 | return 0; |
2805 | ||
2806 | return 1; | |
2807 | } | |
2808 | ||
6e3d6dc1 NC |
2809 | static debug_info * |
2810 | find_debug_info_for_offset (unsigned long offset) | |
2811 | { | |
2812 | unsigned int i; | |
2813 | ||
2814 | if (num_debug_info_entries == DEBUG_INFO_UNAVAILABLE) | |
2815 | return NULL; | |
2816 | ||
2817 | for (i = 0; i < num_debug_info_entries; i++) | |
2818 | if (debug_information[i].cu_offset == offset) | |
2819 | return debug_information + i; | |
2820 | ||
2821 | return NULL; | |
2822 | } | |
2823 | ||
19e6b90e L |
2824 | static int |
2825 | display_debug_pubnames (struct dwarf_section *section, | |
2826 | void *file ATTRIBUTE_UNUSED) | |
2827 | { | |
2828 | DWARF2_Internal_PubNames pubnames; | |
2829 | unsigned char *start = section->start; | |
2830 | unsigned char *end = start + section->size; | |
2831 | ||
6e3d6dc1 NC |
2832 | /* It does not matter if this load fails, |
2833 | we test for that later on. */ | |
2834 | load_debug_info (file); | |
2835 | ||
19e6b90e L |
2836 | printf (_("Contents of the %s section:\n\n"), section->name); |
2837 | ||
2838 | while (start < end) | |
2839 | { | |
2840 | unsigned char *data; | |
2841 | unsigned long offset; | |
2842 | int offset_size, initial_length_size; | |
2843 | ||
2844 | data = start; | |
2845 | ||
2846 | pubnames.pn_length = byte_get (data, 4); | |
2847 | data += 4; | |
2848 | if (pubnames.pn_length == 0xffffffff) | |
2849 | { | |
2850 | pubnames.pn_length = byte_get (data, 8); | |
2851 | data += 8; | |
2852 | offset_size = 8; | |
2853 | initial_length_size = 12; | |
2854 | } | |
2855 | else | |
2856 | { | |
2857 | offset_size = 4; | |
2858 | initial_length_size = 4; | |
2859 | } | |
2860 | ||
2861 | pubnames.pn_version = byte_get (data, 2); | |
2862 | data += 2; | |
6e3d6dc1 | 2863 | |
19e6b90e L |
2864 | pubnames.pn_offset = byte_get (data, offset_size); |
2865 | data += offset_size; | |
6e3d6dc1 NC |
2866 | |
2867 | if (num_debug_info_entries != DEBUG_INFO_UNAVAILABLE | |
2868 | && num_debug_info_entries > 0 | |
2869 | && find_debug_info_for_offset (pubnames.pn_offset) == NULL) | |
2870 | warn (_(".debug_info offset of 0x%lx in %s section does not point to a CU header.\n"), | |
2871 | pubnames.pn_offset, section->name); | |
cecf136e | 2872 | |
19e6b90e L |
2873 | pubnames.pn_size = byte_get (data, offset_size); |
2874 | data += offset_size; | |
2875 | ||
2876 | start += pubnames.pn_length + initial_length_size; | |
2877 | ||
2878 | if (pubnames.pn_version != 2 && pubnames.pn_version != 3) | |
2879 | { | |
2880 | static int warned = 0; | |
2881 | ||
2882 | if (! warned) | |
2883 | { | |
2884 | warn (_("Only DWARF 2 and 3 pubnames are currently supported\n")); | |
2885 | warned = 1; | |
2886 | } | |
2887 | ||
2888 | continue; | |
2889 | } | |
2890 | ||
2891 | printf (_(" Length: %ld\n"), | |
2892 | pubnames.pn_length); | |
2893 | printf (_(" Version: %d\n"), | |
2894 | pubnames.pn_version); | |
6e3d6dc1 | 2895 | printf (_(" Offset into .debug_info section: 0x%lx\n"), |
19e6b90e L |
2896 | pubnames.pn_offset); |
2897 | printf (_(" Size of area in .debug_info section: %ld\n"), | |
2898 | pubnames.pn_size); | |
2899 | ||
2900 | printf (_("\n Offset\tName\n")); | |
2901 | ||
2902 | do | |
2903 | { | |
2904 | offset = byte_get (data, offset_size); | |
2905 | ||
2906 | if (offset != 0) | |
2907 | { | |
2908 | data += offset_size; | |
80c35038 | 2909 | printf (" %-6lx\t%s\n", offset, data); |
19e6b90e L |
2910 | data += strlen ((char *) data) + 1; |
2911 | } | |
2912 | } | |
2913 | while (offset != 0); | |
2914 | } | |
2915 | ||
2916 | printf ("\n"); | |
2917 | return 1; | |
2918 | } | |
2919 | ||
2920 | static int | |
2921 | display_debug_macinfo (struct dwarf_section *section, | |
2922 | void *file ATTRIBUTE_UNUSED) | |
2923 | { | |
2924 | unsigned char *start = section->start; | |
2925 | unsigned char *end = start + section->size; | |
2926 | unsigned char *curr = start; | |
2927 | unsigned int bytes_read; | |
2928 | enum dwarf_macinfo_record_type op; | |
2929 | ||
2930 | printf (_("Contents of the %s section:\n\n"), section->name); | |
2931 | ||
2932 | while (curr < end) | |
2933 | { | |
2934 | unsigned int lineno; | |
2935 | const char *string; | |
2936 | ||
2937 | op = *curr; | |
2938 | curr++; | |
2939 | ||
2940 | switch (op) | |
2941 | { | |
2942 | case DW_MACINFO_start_file: | |
2943 | { | |
2944 | unsigned int filenum; | |
2945 | ||
2946 | lineno = read_leb128 (curr, & bytes_read, 0); | |
2947 | curr += bytes_read; | |
2948 | filenum = read_leb128 (curr, & bytes_read, 0); | |
2949 | curr += bytes_read; | |
2950 | ||
2951 | printf (_(" DW_MACINFO_start_file - lineno: %d filenum: %d\n"), | |
2952 | lineno, filenum); | |
2953 | } | |
2954 | break; | |
2955 | ||
2956 | case DW_MACINFO_end_file: | |
2957 | printf (_(" DW_MACINFO_end_file\n")); | |
2958 | break; | |
2959 | ||
2960 | case DW_MACINFO_define: | |
2961 | lineno = read_leb128 (curr, & bytes_read, 0); | |
2962 | curr += bytes_read; | |
2963 | string = (char *) curr; | |
2964 | curr += strlen (string) + 1; | |
2965 | printf (_(" DW_MACINFO_define - lineno : %d macro : %s\n"), | |
2966 | lineno, string); | |
2967 | break; | |
2968 | ||
2969 | case DW_MACINFO_undef: | |
2970 | lineno = read_leb128 (curr, & bytes_read, 0); | |
2971 | curr += bytes_read; | |
2972 | string = (char *) curr; | |
2973 | curr += strlen (string) + 1; | |
2974 | printf (_(" DW_MACINFO_undef - lineno : %d macro : %s\n"), | |
2975 | lineno, string); | |
2976 | break; | |
2977 | ||
2978 | case DW_MACINFO_vendor_ext: | |
2979 | { | |
2980 | unsigned int constant; | |
2981 | ||
2982 | constant = read_leb128 (curr, & bytes_read, 0); | |
2983 | curr += bytes_read; | |
2984 | string = (char *) curr; | |
2985 | curr += strlen (string) + 1; | |
2986 | printf (_(" DW_MACINFO_vendor_ext - constant : %d string : %s\n"), | |
2987 | constant, string); | |
2988 | } | |
2989 | break; | |
2990 | } | |
2991 | } | |
2992 | ||
2993 | return 1; | |
2994 | } | |
2995 | ||
2996 | static int | |
2997 | display_debug_abbrev (struct dwarf_section *section, | |
2998 | void *file ATTRIBUTE_UNUSED) | |
2999 | { | |
3000 | abbrev_entry *entry; | |
3001 | unsigned char *start = section->start; | |
3002 | unsigned char *end = start + section->size; | |
3003 | ||
3004 | printf (_("Contents of the %s section:\n\n"), section->name); | |
3005 | ||
3006 | do | |
3007 | { | |
3008 | free_abbrevs (); | |
3009 | ||
3010 | start = process_abbrev_section (start, end); | |
3011 | ||
3012 | if (first_abbrev == NULL) | |
3013 | continue; | |
3014 | ||
3015 | printf (_(" Number TAG\n")); | |
3016 | ||
3017 | for (entry = first_abbrev; entry; entry = entry->next) | |
3018 | { | |
3019 | abbrev_attr *attr; | |
3020 | ||
3021 | printf (_(" %ld %s [%s]\n"), | |
3022 | entry->entry, | |
3023 | get_TAG_name (entry->tag), | |
3024 | entry->children ? _("has children") : _("no children")); | |
3025 | ||
3026 | for (attr = entry->first_attr; attr; attr = attr->next) | |
3027 | printf (_(" %-18s %s\n"), | |
3028 | get_AT_name (attr->attribute), | |
3029 | get_FORM_name (attr->form)); | |
3030 | } | |
3031 | } | |
3032 | while (start); | |
3033 | ||
3034 | printf ("\n"); | |
3035 | ||
3036 | return 1; | |
3037 | } | |
3038 | ||
3039 | static int | |
3040 | display_debug_loc (struct dwarf_section *section, void *file) | |
3041 | { | |
3042 | unsigned char *start = section->start; | |
3043 | unsigned char *section_end; | |
3044 | unsigned long bytes; | |
3045 | unsigned char *section_begin = start; | |
3046 | unsigned int num_loc_list = 0; | |
3047 | unsigned long last_offset = 0; | |
3048 | unsigned int first = 0; | |
3049 | unsigned int i; | |
3050 | unsigned int j; | |
3051 | int seen_first_offset = 0; | |
3052 | int use_debug_info = 1; | |
3053 | unsigned char *next; | |
3054 | ||
3055 | bytes = section->size; | |
3056 | section_end = start + bytes; | |
3057 | ||
3058 | if (bytes == 0) | |
3059 | { | |
3060 | printf (_("\nThe %s section is empty.\n"), section->name); | |
3061 | return 0; | |
3062 | } | |
3063 | ||
1febe64d NC |
3064 | if (load_debug_info (file) == 0) |
3065 | { | |
3066 | warn (_("Unable to load/parse the .debug_info section, so cannot interpret the %s section.\n"), | |
3067 | section->name); | |
3068 | return 0; | |
3069 | } | |
19e6b90e L |
3070 | |
3071 | /* Check the order of location list in .debug_info section. If | |
3072 | offsets of location lists are in the ascending order, we can | |
3073 | use `debug_information' directly. */ | |
3074 | for (i = 0; i < num_debug_info_entries; i++) | |
3075 | { | |
3076 | unsigned int num; | |
3077 | ||
3078 | num = debug_information [i].num_loc_offsets; | |
3079 | num_loc_list += num; | |
3080 | ||
3081 | /* Check if we can use `debug_information' directly. */ | |
3082 | if (use_debug_info && num != 0) | |
3083 | { | |
3084 | if (!seen_first_offset) | |
3085 | { | |
3086 | /* This is the first location list. */ | |
3087 | last_offset = debug_information [i].loc_offsets [0]; | |
3088 | first = i; | |
3089 | seen_first_offset = 1; | |
3090 | j = 1; | |
3091 | } | |
3092 | else | |
3093 | j = 0; | |
3094 | ||
3095 | for (; j < num; j++) | |
3096 | { | |
3097 | if (last_offset > | |
3098 | debug_information [i].loc_offsets [j]) | |
3099 | { | |
3100 | use_debug_info = 0; | |
3101 | break; | |
3102 | } | |
3103 | last_offset = debug_information [i].loc_offsets [j]; | |
3104 | } | |
3105 | } | |
3106 | } | |
3107 | ||
3108 | if (!use_debug_info) | |
3109 | /* FIXME: Should we handle this case? */ | |
3110 | error (_("Location lists in .debug_info section aren't in ascending order!\n")); | |
3111 | ||
3112 | if (!seen_first_offset) | |
3113 | error (_("No location lists in .debug_info section!\n")); | |
3114 | ||
bfe2612a | 3115 | /* DWARF sections under Mach-O have non-zero addresses. */ |
d4bfc77b AS |
3116 | if (debug_information [first].num_loc_offsets > 0 |
3117 | && debug_information [first].loc_offsets [0] != section->address) | |
19e6b90e L |
3118 | warn (_("Location lists in %s section start at 0x%lx\n"), |
3119 | section->name, debug_information [first].loc_offsets [0]); | |
3120 | ||
3121 | printf (_("Contents of the %s section:\n\n"), section->name); | |
3122 | printf (_(" Offset Begin End Expression\n")); | |
3123 | ||
3124 | seen_first_offset = 0; | |
3125 | for (i = first; i < num_debug_info_entries; i++) | |
3126 | { | |
2d9472a2 NC |
3127 | dwarf_vma begin; |
3128 | dwarf_vma end; | |
19e6b90e L |
3129 | unsigned short length; |
3130 | unsigned long offset; | |
3131 | unsigned int pointer_size; | |
3132 | unsigned long cu_offset; | |
3133 | unsigned long base_address; | |
3134 | int need_frame_base; | |
3135 | int has_frame_base; | |
3136 | ||
3137 | pointer_size = debug_information [i].pointer_size; | |
3138 | cu_offset = debug_information [i].cu_offset; | |
3139 | ||
3140 | for (j = 0; j < debug_information [i].num_loc_offsets; j++) | |
3141 | { | |
3142 | has_frame_base = debug_information [i].have_frame_base [j]; | |
bfe2612a | 3143 | /* DWARF sections under Mach-O have non-zero addresses. */ |
cecf136e | 3144 | offset = debug_information [i].loc_offsets [j] - section->address; |
19e6b90e L |
3145 | next = section_begin + offset; |
3146 | base_address = debug_information [i].base_address; | |
3147 | ||
3148 | if (!seen_first_offset) | |
3149 | seen_first_offset = 1; | |
3150 | else | |
3151 | { | |
3152 | if (start < next) | |
3153 | warn (_("There is a hole [0x%lx - 0x%lx] in .debug_loc section.\n"), | |
0af1713e AM |
3154 | (unsigned long) (start - section_begin), |
3155 | (unsigned long) (next - section_begin)); | |
19e6b90e L |
3156 | else if (start > next) |
3157 | warn (_("There is an overlap [0x%lx - 0x%lx] in .debug_loc section.\n"), | |
0af1713e AM |
3158 | (unsigned long) (start - section_begin), |
3159 | (unsigned long) (next - section_begin)); | |
19e6b90e L |
3160 | } |
3161 | start = next; | |
3162 | ||
3163 | if (offset >= bytes) | |
3164 | { | |
3165 | warn (_("Offset 0x%lx is bigger than .debug_loc section size.\n"), | |
3166 | offset); | |
3167 | continue; | |
3168 | } | |
3169 | ||
3170 | while (1) | |
3171 | { | |
3172 | if (start + 2 * pointer_size > section_end) | |
3173 | { | |
3174 | warn (_("Location list starting at offset 0x%lx is not terminated.\n"), | |
3175 | offset); | |
3176 | break; | |
3177 | } | |
3178 | ||
2d9472a2 NC |
3179 | /* Note: we use sign extension here in order to be sure that |
3180 | we can detect the -1 escape value. Sign extension into the | |
3181 | top 32 bits of a 32-bit address will not affect the values | |
3182 | that we display since we always show hex values, and always | |
cecf136e | 3183 | the bottom 32-bits. */ |
2d9472a2 | 3184 | begin = byte_get_signed (start, pointer_size); |
19e6b90e | 3185 | start += pointer_size; |
2d9472a2 | 3186 | end = byte_get_signed (start, pointer_size); |
19e6b90e L |
3187 | start += pointer_size; |
3188 | ||
2d9472a2 NC |
3189 | printf (" %8.8lx ", offset); |
3190 | ||
19e6b90e L |
3191 | if (begin == 0 && end == 0) |
3192 | { | |
2d9472a2 | 3193 | printf (_("<End of list>\n")); |
19e6b90e L |
3194 | break; |
3195 | } | |
3196 | ||
3197 | /* Check base address specifiers. */ | |
2d9472a2 | 3198 | if (begin == (dwarf_vma) -1 && end != (dwarf_vma) -1) |
19e6b90e L |
3199 | { |
3200 | base_address = end; | |
2d9472a2 NC |
3201 | print_dwarf_vma (begin, pointer_size); |
3202 | print_dwarf_vma (end, pointer_size); | |
3203 | printf (_("(base address)\n")); | |
19e6b90e L |
3204 | continue; |
3205 | } | |
3206 | ||
3207 | if (start + 2 > section_end) | |
3208 | { | |
3209 | warn (_("Location list starting at offset 0x%lx is not terminated.\n"), | |
3210 | offset); | |
3211 | break; | |
3212 | } | |
3213 | ||
3214 | length = byte_get (start, 2); | |
3215 | start += 2; | |
3216 | ||
3217 | if (start + length > section_end) | |
3218 | { | |
3219 | warn (_("Location list starting at offset 0x%lx is not terminated.\n"), | |
3220 | offset); | |
3221 | break; | |
3222 | } | |
3223 | ||
2d9472a2 NC |
3224 | print_dwarf_vma (begin + base_address, pointer_size); |
3225 | print_dwarf_vma (end + base_address, pointer_size); | |
3226 | ||
3227 | putchar ('('); | |
19e6b90e L |
3228 | need_frame_base = decode_location_expression (start, |
3229 | pointer_size, | |
3230 | length, | |
f1c4cc75 | 3231 | cu_offset, section); |
19e6b90e L |
3232 | putchar (')'); |
3233 | ||
3234 | if (need_frame_base && !has_frame_base) | |
3235 | printf (_(" [without DW_AT_frame_base]")); | |
3236 | ||
3237 | if (begin == end) | |
3238 | fputs (_(" (start == end)"), stdout); | |
3239 | else if (begin > end) | |
3240 | fputs (_(" (start > end)"), stdout); | |
3241 | ||
3242 | putchar ('\n'); | |
3243 | ||
3244 | start += length; | |
3245 | } | |
3246 | } | |
3247 | } | |
031cd65f NC |
3248 | |
3249 | if (start < section_end) | |
3250 | warn (_("There are %ld unused bytes at the end of section %s\n"), | |
0eb090cb | 3251 | (long) (section_end - start), section->name); |
19e6b90e L |
3252 | return 1; |
3253 | } | |
3254 | ||
3255 | static int | |
3256 | display_debug_str (struct dwarf_section *section, | |
3257 | void *file ATTRIBUTE_UNUSED) | |
3258 | { | |
3259 | unsigned char *start = section->start; | |
3260 | unsigned long bytes = section->size; | |
3261 | dwarf_vma addr = section->address; | |
3262 | ||
3263 | if (bytes == 0) | |
3264 | { | |
3265 | printf (_("\nThe %s section is empty.\n"), section->name); | |
3266 | return 0; | |
3267 | } | |
3268 | ||
3269 | printf (_("Contents of the %s section:\n\n"), section->name); | |
3270 | ||
3271 | while (bytes) | |
3272 | { | |
3273 | int j; | |
3274 | int k; | |
3275 | int lbytes; | |
3276 | ||
3277 | lbytes = (bytes > 16 ? 16 : bytes); | |
3278 | ||
3279 | printf (" 0x%8.8lx ", (unsigned long) addr); | |
3280 | ||
3281 | for (j = 0; j < 16; j++) | |
3282 | { | |
3283 | if (j < lbytes) | |
3284 | printf ("%2.2x", start[j]); | |
3285 | else | |
3286 | printf (" "); | |
3287 | ||
3288 | if ((j & 3) == 3) | |
3289 | printf (" "); | |
3290 | } | |
3291 | ||
3292 | for (j = 0; j < lbytes; j++) | |
3293 | { | |
3294 | k = start[j]; | |
3295 | if (k >= ' ' && k < 0x80) | |
3296 | printf ("%c", k); | |
3297 | else | |
3298 | printf ("."); | |
3299 | } | |
3300 | ||
3301 | putchar ('\n'); | |
3302 | ||
3303 | start += lbytes; | |
3304 | addr += lbytes; | |
3305 | bytes -= lbytes; | |
3306 | } | |
3307 | ||
3308 | putchar ('\n'); | |
3309 | ||
3310 | return 1; | |
3311 | } | |
3312 | ||
19e6b90e L |
3313 | static int |
3314 | display_debug_info (struct dwarf_section *section, void *file) | |
3315 | { | |
3316 | return process_debug_info (section, file, 0); | |
3317 | } | |
3318 | ||
3319 | ||
3320 | static int | |
3321 | display_debug_aranges (struct dwarf_section *section, | |
3322 | void *file ATTRIBUTE_UNUSED) | |
3323 | { | |
3324 | unsigned char *start = section->start; | |
3325 | unsigned char *end = start + section->size; | |
3326 | ||
80c35038 | 3327 | printf (_("Contents of the %s section:\n\n"), section->name); |
19e6b90e | 3328 | |
6e3d6dc1 NC |
3329 | /* It does not matter if this load fails, |
3330 | we test for that later on. */ | |
3331 | load_debug_info (file); | |
3332 | ||
19e6b90e L |
3333 | while (start < end) |
3334 | { | |
3335 | unsigned char *hdrptr; | |
3336 | DWARF2_Internal_ARange arange; | |
3337 | unsigned char *ranges; | |
2d9472a2 NC |
3338 | dwarf_vma length; |
3339 | dwarf_vma address; | |
53b8873b | 3340 | unsigned char address_size; |
19e6b90e L |
3341 | int excess; |
3342 | int offset_size; | |
3343 | int initial_length_size; | |
3344 | ||
3345 | hdrptr = start; | |
3346 | ||
3347 | arange.ar_length = byte_get (hdrptr, 4); | |
3348 | hdrptr += 4; | |
3349 | ||
3350 | if (arange.ar_length == 0xffffffff) | |
3351 | { | |
3352 | arange.ar_length = byte_get (hdrptr, 8); | |
3353 | hdrptr += 8; | |
3354 | offset_size = 8; | |
3355 | initial_length_size = 12; | |
3356 | } | |
3357 | else | |
3358 | { | |
3359 | offset_size = 4; | |
3360 | initial_length_size = 4; | |
3361 | } | |
3362 | ||
3363 | arange.ar_version = byte_get (hdrptr, 2); | |
3364 | hdrptr += 2; | |
3365 | ||
3366 | arange.ar_info_offset = byte_get (hdrptr, offset_size); | |
3367 | hdrptr += offset_size; | |
3368 | ||
6e3d6dc1 NC |
3369 | if (num_debug_info_entries != DEBUG_INFO_UNAVAILABLE |
3370 | && num_debug_info_entries > 0 | |
3371 | && find_debug_info_for_offset (arange.ar_info_offset) == NULL) | |
3372 | warn (_(".debug_info offset of 0x%lx in %s section does not point to a CU header.\n"), | |
3373 | arange.ar_info_offset, section->name); | |
3374 | ||
19e6b90e L |
3375 | arange.ar_pointer_size = byte_get (hdrptr, 1); |
3376 | hdrptr += 1; | |
3377 | ||
3378 | arange.ar_segment_size = byte_get (hdrptr, 1); | |
3379 | hdrptr += 1; | |
3380 | ||
3381 | if (arange.ar_version != 2 && arange.ar_version != 3) | |
3382 | { | |
3383 | warn (_("Only DWARF 2 and 3 aranges are currently supported.\n")); | |
3384 | break; | |
3385 | } | |
3386 | ||
3387 | printf (_(" Length: %ld\n"), arange.ar_length); | |
3388 | printf (_(" Version: %d\n"), arange.ar_version); | |
6e3d6dc1 | 3389 | printf (_(" Offset into .debug_info: 0x%lx\n"), arange.ar_info_offset); |
19e6b90e L |
3390 | printf (_(" Pointer Size: %d\n"), arange.ar_pointer_size); |
3391 | printf (_(" Segment Size: %d\n"), arange.ar_segment_size); | |
3392 | ||
53b8873b NC |
3393 | address_size = arange.ar_pointer_size + arange.ar_segment_size; |
3394 | ||
3395 | /* The DWARF spec does not require that the address size be a power | |
3396 | of two, but we do. This will have to change if we ever encounter | |
3397 | an uneven architecture. */ | |
3398 | if ((address_size & (address_size - 1)) != 0) | |
3399 | { | |
3400 | warn (_("Pointer size + Segment size is not a power of two.\n")); | |
3401 | break; | |
3402 | } | |
cecf136e | 3403 | |
209c9a13 NC |
3404 | if (address_size > 4) |
3405 | printf (_("\n Address Length\n")); | |
3406 | else | |
3407 | printf (_("\n Address Length\n")); | |
19e6b90e L |
3408 | |
3409 | ranges = hdrptr; | |
3410 | ||
53b8873b NC |
3411 | /* Must pad to an alignment boundary that is twice the address size. */ |
3412 | excess = (hdrptr - start) % (2 * address_size); | |
19e6b90e | 3413 | if (excess) |
53b8873b | 3414 | ranges += (2 * address_size) - excess; |
19e6b90e | 3415 | |
1617e571 AM |
3416 | start += arange.ar_length + initial_length_size; |
3417 | ||
53b8873b | 3418 | while (ranges + 2 * address_size <= start) |
19e6b90e | 3419 | { |
53b8873b | 3420 | address = byte_get (ranges, address_size); |
19e6b90e | 3421 | |
53b8873b | 3422 | ranges += address_size; |
19e6b90e | 3423 | |
53b8873b | 3424 | length = byte_get (ranges, address_size); |
19e6b90e | 3425 | |
53b8873b | 3426 | ranges += address_size; |
19e6b90e | 3427 | |
80c35038 | 3428 | printf (" "); |
2d9472a2 NC |
3429 | print_dwarf_vma (address, address_size); |
3430 | print_dwarf_vma (length, address_size); | |
3431 | putchar ('\n'); | |
19e6b90e | 3432 | } |
19e6b90e L |
3433 | } |
3434 | ||
3435 | printf ("\n"); | |
3436 | ||
3437 | return 1; | |
3438 | } | |
3439 | ||
3440 | static int | |
3441 | display_debug_ranges (struct dwarf_section *section, | |
3442 | void *file ATTRIBUTE_UNUSED) | |
3443 | { | |
3444 | unsigned char *start = section->start; | |
3445 | unsigned char *section_end; | |
3446 | unsigned long bytes; | |
3447 | unsigned char *section_begin = start; | |
3448 | unsigned int num_range_list = 0; | |
3449 | unsigned long last_offset = 0; | |
3450 | unsigned int first = 0; | |
3451 | unsigned int i; | |
3452 | unsigned int j; | |
3453 | int seen_first_offset = 0; | |
3454 | int use_debug_info = 1; | |
3455 | unsigned char *next; | |
3456 | ||
3457 | bytes = section->size; | |
3458 | section_end = start + bytes; | |
3459 | ||
3460 | if (bytes == 0) | |
3461 | { | |
3462 | printf (_("\nThe %s section is empty.\n"), section->name); | |
3463 | return 0; | |
3464 | } | |
3465 | ||
1febe64d NC |
3466 | if (load_debug_info (file) == 0) |
3467 | { | |
3468 | warn (_("Unable to load/parse the .debug_info section, so cannot interpret the %s section.\n"), | |
3469 | section->name); | |
3470 | return 0; | |
3471 | } | |
19e6b90e L |
3472 | |
3473 | /* Check the order of range list in .debug_info section. If | |
3474 | offsets of range lists are in the ascending order, we can | |
3475 | use `debug_information' directly. */ | |
3476 | for (i = 0; i < num_debug_info_entries; i++) | |
3477 | { | |
3478 | unsigned int num; | |
3479 | ||
3480 | num = debug_information [i].num_range_lists; | |
3481 | num_range_list += num; | |
3482 | ||
3483 | /* Check if we can use `debug_information' directly. */ | |
3484 | if (use_debug_info && num != 0) | |
3485 | { | |
3486 | if (!seen_first_offset) | |
3487 | { | |
3488 | /* This is the first range list. */ | |
3489 | last_offset = debug_information [i].range_lists [0]; | |
3490 | first = i; | |
3491 | seen_first_offset = 1; | |
3492 | j = 1; | |
3493 | } | |
3494 | else | |
3495 | j = 0; | |
3496 | ||
3497 | for (; j < num; j++) | |
3498 | { | |
3499 | if (last_offset > | |
3500 | debug_information [i].range_lists [j]) | |
3501 | { | |
3502 | use_debug_info = 0; | |
3503 | break; | |
3504 | } | |
3505 | last_offset = debug_information [i].range_lists [j]; | |
3506 | } | |
3507 | } | |
3508 | } | |
3509 | ||
3510 | if (!use_debug_info) | |
3511 | /* FIXME: Should we handle this case? */ | |
3512 | error (_("Range lists in .debug_info section aren't in ascending order!\n")); | |
3513 | ||
3514 | if (!seen_first_offset) | |
3515 | error (_("No range lists in .debug_info section!\n")); | |
3516 | ||
bfe2612a | 3517 | /* DWARF sections under Mach-O have non-zero addresses. */ |
d4bfc77b AS |
3518 | if (debug_information [first].num_range_lists > 0 |
3519 | && debug_information [first].range_lists [0] != section->address) | |
19e6b90e L |
3520 | warn (_("Range lists in %s section start at 0x%lx\n"), |
3521 | section->name, debug_information [first].range_lists [0]); | |
3522 | ||
3523 | printf (_("Contents of the %s section:\n\n"), section->name); | |
3524 | printf (_(" Offset Begin End\n")); | |
3525 | ||
3526 | seen_first_offset = 0; | |
3527 | for (i = first; i < num_debug_info_entries; i++) | |
3528 | { | |
2d9472a2 NC |
3529 | dwarf_vma begin; |
3530 | dwarf_vma end; | |
19e6b90e L |
3531 | unsigned long offset; |
3532 | unsigned int pointer_size; | |
3533 | unsigned long base_address; | |
3534 | ||
3535 | pointer_size = debug_information [i].pointer_size; | |
cecf136e | 3536 | |
19e6b90e L |
3537 | for (j = 0; j < debug_information [i].num_range_lists; j++) |
3538 | { | |
bfe2612a L |
3539 | /* DWARF sections under Mach-O have non-zero addresses. */ |
3540 | offset = debug_information [i].range_lists [j] - section->address; | |
19e6b90e L |
3541 | next = section_begin + offset; |
3542 | base_address = debug_information [i].base_address; | |
3543 | ||
3544 | if (!seen_first_offset) | |
3545 | seen_first_offset = 1; | |
3546 | else | |
3547 | { | |
3548 | if (start < next) | |
3549 | warn (_("There is a hole [0x%lx - 0x%lx] in %s section.\n"), | |
0af1713e AM |
3550 | (unsigned long) (start - section_begin), |
3551 | (unsigned long) (next - section_begin), section->name); | |
19e6b90e L |
3552 | else if (start > next) |
3553 | warn (_("There is an overlap [0x%lx - 0x%lx] in %s section.\n"), | |
0af1713e AM |
3554 | (unsigned long) (start - section_begin), |
3555 | (unsigned long) (next - section_begin), section->name); | |
19e6b90e L |
3556 | } |
3557 | start = next; | |
3558 | ||
3559 | while (1) | |
3560 | { | |
2d9472a2 NC |
3561 | /* Note: we use sign extension here in order to be sure that |
3562 | we can detect the -1 escape value. Sign extension into the | |
3563 | top 32 bits of a 32-bit address will not affect the values | |
3564 | that we display since we always show hex values, and always | |
cecf136e | 3565 | the bottom 32-bits. */ |
2d9472a2 | 3566 | begin = byte_get_signed (start, pointer_size); |
19e6b90e | 3567 | start += pointer_size; |
2d9472a2 | 3568 | end = byte_get_signed (start, pointer_size); |
19e6b90e L |
3569 | start += pointer_size; |
3570 | ||
2d9472a2 NC |
3571 | printf (" %8.8lx ", offset); |
3572 | ||
19e6b90e L |
3573 | if (begin == 0 && end == 0) |
3574 | { | |
2d9472a2 | 3575 | printf (_("<End of list>\n")); |
19e6b90e L |
3576 | break; |
3577 | } | |
3578 | ||
2d9472a2 NC |
3579 | print_dwarf_vma (begin, pointer_size); |
3580 | print_dwarf_vma (end, pointer_size); | |
3581 | ||
19e6b90e | 3582 | /* Check base address specifiers. */ |
2d9472a2 | 3583 | if (begin == (dwarf_vma) -1 && end != (dwarf_vma) -1) |
19e6b90e L |
3584 | { |
3585 | base_address = end; | |
2d9472a2 | 3586 | printf ("(base address)\n"); |
19e6b90e L |
3587 | continue; |
3588 | } | |
3589 | ||
19e6b90e | 3590 | if (begin == end) |
2d9472a2 | 3591 | fputs (_("(start == end)"), stdout); |
19e6b90e | 3592 | else if (begin > end) |
2d9472a2 | 3593 | fputs (_("(start > end)"), stdout); |
19e6b90e L |
3594 | |
3595 | putchar ('\n'); | |
3596 | } | |
3597 | } | |
3598 | } | |
3599 | putchar ('\n'); | |
3600 | return 1; | |
3601 | } | |
3602 | ||
3603 | typedef struct Frame_Chunk | |
3604 | { | |
3605 | struct Frame_Chunk *next; | |
3606 | unsigned char *chunk_start; | |
3607 | int ncols; | |
3608 | /* DW_CFA_{undefined,same_value,offset,register,unreferenced} */ | |
3609 | short int *col_type; | |
3610 | int *col_offset; | |
3611 | char *augmentation; | |
3612 | unsigned int code_factor; | |
3613 | int data_factor; | |
3614 | unsigned long pc_begin; | |
3615 | unsigned long pc_range; | |
3616 | int cfa_reg; | |
3617 | int cfa_offset; | |
3618 | int ra; | |
3619 | unsigned char fde_encoding; | |
3620 | unsigned char cfa_exp; | |
3621 | } | |
3622 | Frame_Chunk; | |
3623 | ||
3624 | /* A marker for a col_type that means this column was never referenced | |
3625 | in the frame info. */ | |
3626 | #define DW_CFA_unreferenced (-1) | |
3627 | ||
3628 | static void | |
3629 | frame_need_space (Frame_Chunk *fc, int reg) | |
3630 | { | |
3631 | int prev = fc->ncols; | |
3632 | ||
3633 | if (reg < fc->ncols) | |
3634 | return; | |
3635 | ||
3636 | fc->ncols = reg + 1; | |
3637 | fc->col_type = xcrealloc (fc->col_type, fc->ncols, sizeof (short int)); | |
3638 | fc->col_offset = xcrealloc (fc->col_offset, fc->ncols, sizeof (int)); | |
3639 | ||
3640 | while (prev < fc->ncols) | |
3641 | { | |
3642 | fc->col_type[prev] = DW_CFA_unreferenced; | |
3643 | fc->col_offset[prev] = 0; | |
3644 | prev++; | |
3645 | } | |
3646 | } | |
3647 | ||
2dc4cec1 L |
3648 | static const char *const dwarf_regnames_i386[] = |
3649 | { | |
3650 | "eax", "ecx", "edx", "ebx", | |
3651 | "esp", "ebp", "esi", "edi", | |
3652 | "eip", "eflags", NULL, | |
3653 | "st0", "st1", "st2", "st3", | |
3654 | "st4", "st5", "st6", "st7", | |
3655 | NULL, NULL, | |
3656 | "xmm0", "xmm1", "xmm2", "xmm3", | |
3657 | "xmm4", "xmm5", "xmm6", "xmm7", | |
3658 | "mm0", "mm1", "mm2", "mm3", | |
3659 | "mm4", "mm5", "mm6", "mm7", | |
3660 | "fcw", "fsw", "mxcsr", | |
3661 | "es", "cs", "ss", "ds", "fs", "gs", NULL, NULL, | |
a656ed5b | 3662 | "tr", "ldtr" |
2dc4cec1 L |
3663 | }; |
3664 | ||
3665 | static const char *const dwarf_regnames_x86_64[] = | |
3666 | { | |
3667 | "rax", "rdx", "rcx", "rbx", | |
3668 | "rsi", "rdi", "rbp", "rsp", | |
3669 | "r8", "r9", "r10", "r11", | |
3670 | "r12", "r13", "r14", "r15", | |
3671 | "rip", | |
3672 | "xmm0", "xmm1", "xmm2", "xmm3", | |
3673 | "xmm4", "xmm5", "xmm6", "xmm7", | |
3674 | "xmm8", "xmm9", "xmm10", "xmm11", | |
3675 | "xmm12", "xmm13", "xmm14", "xmm15", | |
3676 | "st0", "st1", "st2", "st3", | |
3677 | "st4", "st5", "st6", "st7", | |
3678 | "mm0", "mm1", "mm2", "mm3", | |
3679 | "mm4", "mm5", "mm6", "mm7", | |
3680 | "rflags", | |
3681 | "es", "cs", "ss", "ds", "fs", "gs", NULL, NULL, | |
3682 | "fs.base", "gs.base", NULL, NULL, | |
3683 | "tr", "ldtr", | |
a656ed5b | 3684 | "mxcsr", "fcw", "fsw" |
2dc4cec1 L |
3685 | }; |
3686 | ||
3687 | static const char *const *dwarf_regnames; | |
3688 | static unsigned int dwarf_regnames_count; | |
3689 | ||
3690 | void | |
3691 | init_dwarf_regnames (unsigned int e_machine) | |
3692 | { | |
3693 | switch (e_machine) | |
3694 | { | |
3695 | case EM_386: | |
3696 | case EM_486: | |
3697 | dwarf_regnames = dwarf_regnames_i386; | |
3698 | dwarf_regnames_count = ARRAY_SIZE (dwarf_regnames_i386); | |
3699 | break; | |
3700 | ||
3701 | case EM_X86_64: | |
3702 | dwarf_regnames = dwarf_regnames_x86_64; | |
3703 | dwarf_regnames_count = ARRAY_SIZE (dwarf_regnames_x86_64); | |
3704 | break; | |
3705 | ||
3706 | default: | |
3707 | break; | |
3708 | } | |
3709 | } | |
3710 | ||
3711 | static const char * | |
3712 | regname (unsigned int regno, int row) | |
3713 | { | |
3714 | static char reg[64]; | |
3715 | if (dwarf_regnames | |
3716 | && regno < dwarf_regnames_count | |
3717 | && dwarf_regnames [regno] != NULL) | |
3718 | { | |
3719 | if (row) | |
3720 | return dwarf_regnames [regno]; | |
3721 | snprintf (reg, sizeof (reg), "r%d (%s)", regno, | |
3722 | dwarf_regnames [regno]); | |
3723 | } | |
3724 | else | |
3725 | snprintf (reg, sizeof (reg), "r%d", regno); | |
3726 | return reg; | |
3727 | } | |
3728 | ||
19e6b90e L |
3729 | static void |
3730 | frame_display_row (Frame_Chunk *fc, int *need_col_headers, int *max_regs) | |
3731 | { | |
3732 | int r; | |
3733 | char tmp[100]; | |
3734 | ||
3735 | if (*max_regs < fc->ncols) | |
3736 | *max_regs = fc->ncols; | |
3737 | ||
3738 | if (*need_col_headers) | |
3739 | { | |
2dc4cec1 L |
3740 | static const char *loc = " LOC"; |
3741 | ||
19e6b90e L |
3742 | *need_col_headers = 0; |
3743 | ||
2dc4cec1 | 3744 | printf ("%-*s CFA ", eh_addr_size * 2, loc); |
19e6b90e L |
3745 | |
3746 | for (r = 0; r < *max_regs; r++) | |
3747 | if (fc->col_type[r] != DW_CFA_unreferenced) | |
3748 | { | |
3749 | if (r == fc->ra) | |
2dc4cec1 | 3750 | printf ("ra "); |
19e6b90e | 3751 | else |
2dc4cec1 | 3752 | printf ("%-5s ", regname (r, 1)); |
19e6b90e L |
3753 | } |
3754 | ||
3755 | printf ("\n"); | |
3756 | } | |
3757 | ||
2dc4cec1 | 3758 | printf ("%0*lx ", eh_addr_size * 2, fc->pc_begin); |
19e6b90e L |
3759 | if (fc->cfa_exp) |
3760 | strcpy (tmp, "exp"); | |
3761 | else | |
2dc4cec1 | 3762 | sprintf (tmp, "%s%+d", regname (fc->cfa_reg, 1), fc->cfa_offset); |
19e6b90e L |
3763 | printf ("%-8s ", tmp); |
3764 | ||
3765 | for (r = 0; r < fc->ncols; r++) | |
3766 | { | |
3767 | if (fc->col_type[r] != DW_CFA_unreferenced) | |
3768 | { | |
3769 | switch (fc->col_type[r]) | |
3770 | { | |
3771 | case DW_CFA_undefined: | |
3772 | strcpy (tmp, "u"); | |
3773 | break; | |
3774 | case DW_CFA_same_value: | |
3775 | strcpy (tmp, "s"); | |
3776 | break; | |
3777 | case DW_CFA_offset: | |
3778 | sprintf (tmp, "c%+d", fc->col_offset[r]); | |
3779 | break; | |
12eae2d3 JJ |
3780 | case DW_CFA_val_offset: |
3781 | sprintf (tmp, "v%+d", fc->col_offset[r]); | |
3782 | break; | |
19e6b90e | 3783 | case DW_CFA_register: |
2dc4cec1 | 3784 | sprintf (tmp, "%s", regname (fc->col_offset[r], 0)); |
19e6b90e L |
3785 | break; |
3786 | case DW_CFA_expression: | |
3787 | strcpy (tmp, "exp"); | |
3788 | break; | |
12eae2d3 JJ |
3789 | case DW_CFA_val_expression: |
3790 | strcpy (tmp, "vexp"); | |
3791 | break; | |
19e6b90e L |
3792 | default: |
3793 | strcpy (tmp, "n/a"); | |
3794 | break; | |
3795 | } | |
2dc4cec1 | 3796 | printf ("%-5s ", tmp); |
19e6b90e L |
3797 | } |
3798 | } | |
3799 | printf ("\n"); | |
3800 | } | |
3801 | ||
19e6b90e L |
3802 | #define GET(N) byte_get (start, N); start += N |
3803 | #define LEB() read_leb128 (start, & length_return, 0); start += length_return | |
3804 | #define SLEB() read_leb128 (start, & length_return, 1); start += length_return | |
3805 | ||
3806 | static int | |
3807 | display_debug_frames (struct dwarf_section *section, | |
3808 | void *file ATTRIBUTE_UNUSED) | |
3809 | { | |
3810 | unsigned char *start = section->start; | |
3811 | unsigned char *end = start + section->size; | |
3812 | unsigned char *section_start = start; | |
3813 | Frame_Chunk *chunks = 0; | |
3814 | Frame_Chunk *remembered_state = 0; | |
3815 | Frame_Chunk *rs; | |
3816 | int is_eh = strcmp (section->name, ".eh_frame") == 0; | |
3817 | unsigned int length_return; | |
3818 | int max_regs = 0; | |
3819 | ||
80c35038 | 3820 | printf (_("Contents of the %s section:\n"), section->name); |
19e6b90e L |
3821 | |
3822 | while (start < end) | |
3823 | { | |
3824 | unsigned char *saved_start; | |
3825 | unsigned char *block_end; | |
3826 | unsigned long length; | |
3827 | unsigned long cie_id; | |
3828 | Frame_Chunk *fc; | |
3829 | Frame_Chunk *cie; | |
3830 | int need_col_headers = 1; | |
3831 | unsigned char *augmentation_data = NULL; | |
3832 | unsigned long augmentation_data_len = 0; | |
3833 | int encoded_ptr_size = eh_addr_size; | |
3834 | int offset_size; | |
3835 | int initial_length_size; | |
3836 | ||
3837 | saved_start = start; | |
3838 | length = byte_get (start, 4); start += 4; | |
3839 | ||
3840 | if (length == 0) | |
3841 | { | |
3842 | printf ("\n%08lx ZERO terminator\n\n", | |
3843 | (unsigned long)(saved_start - section_start)); | |
b758e50f | 3844 | continue; |
19e6b90e L |
3845 | } |
3846 | ||
3847 | if (length == 0xffffffff) | |
3848 | { | |
3849 | length = byte_get (start, 8); | |
3850 | start += 8; | |
3851 | offset_size = 8; | |
3852 | initial_length_size = 12; | |
3853 | } | |
3854 | else | |
3855 | { | |
3856 | offset_size = 4; | |
3857 | initial_length_size = 4; | |
3858 | } | |
3859 | ||
3860 | block_end = saved_start + length + initial_length_size; | |
53b8873b NC |
3861 | if (block_end > end) |
3862 | { | |
3863 | warn ("Invalid length %#08lx in FDE at %#08lx\n", | |
3864 | length, (unsigned long)(saved_start - section_start)); | |
3865 | block_end = end; | |
3866 | } | |
19e6b90e L |
3867 | cie_id = byte_get (start, offset_size); start += offset_size; |
3868 | ||
3869 | if (is_eh ? (cie_id == 0) : (cie_id == DW_CIE_ID)) | |
3870 | { | |
3871 | int version; | |
3872 | ||
3873 | fc = xmalloc (sizeof (Frame_Chunk)); | |
3874 | memset (fc, 0, sizeof (Frame_Chunk)); | |
3875 | ||
3876 | fc->next = chunks; | |
3877 | chunks = fc; | |
3878 | fc->chunk_start = saved_start; | |
3879 | fc->ncols = 0; | |
3880 | fc->col_type = xmalloc (sizeof (short int)); | |
3881 | fc->col_offset = xmalloc (sizeof (int)); | |
cc86f28f | 3882 | frame_need_space (fc, max_regs - 1); |
19e6b90e L |
3883 | |
3884 | version = *start++; | |
3885 | ||
3886 | fc->augmentation = (char *) start; | |
3887 | start = (unsigned char *) strchr ((char *) start, '\0') + 1; | |
3888 | ||
3889 | if (fc->augmentation[0] == 'z') | |
3890 | { | |
3891 | fc->code_factor = LEB (); | |
3892 | fc->data_factor = SLEB (); | |
3893 | if (version == 1) | |
3894 | { | |
3895 | fc->ra = GET (1); | |
3896 | } | |
3897 | else | |
3898 | { | |
3899 | fc->ra = LEB (); | |
3900 | } | |
3901 | augmentation_data_len = LEB (); | |
3902 | augmentation_data = start; | |
3903 | start += augmentation_data_len; | |
3904 | } | |
3905 | else if (strcmp (fc->augmentation, "eh") == 0) | |
3906 | { | |
3907 | start += eh_addr_size; | |
3908 | fc->code_factor = LEB (); | |
3909 | fc->data_factor = SLEB (); | |
3910 | if (version == 1) | |
3911 | { | |
3912 | fc->ra = GET (1); | |
3913 | } | |
3914 | else | |
3915 | { | |
3916 | fc->ra = LEB (); | |
3917 | } | |
3918 | } | |
3919 | else | |
3920 | { | |
3921 | fc->code_factor = LEB (); | |
3922 | fc->data_factor = SLEB (); | |
3923 | if (version == 1) | |
3924 | { | |
3925 | fc->ra = GET (1); | |
3926 | } | |
3927 | else | |
3928 | { | |
3929 | fc->ra = LEB (); | |
3930 | } | |
3931 | } | |
3932 | cie = fc; | |
3933 | ||
3934 | if (do_debug_frames_interp) | |
3935 | printf ("\n%08lx %08lx %08lx CIE \"%s\" cf=%d df=%d ra=%d\n", | |
3936 | (unsigned long)(saved_start - section_start), length, cie_id, | |
3937 | fc->augmentation, fc->code_factor, fc->data_factor, | |
3938 | fc->ra); | |
3939 | else | |
3940 | { | |
3941 | printf ("\n%08lx %08lx %08lx CIE\n", | |
3942 | (unsigned long)(saved_start - section_start), length, cie_id); | |
3943 | printf (" Version: %d\n", version); | |
3944 | printf (" Augmentation: \"%s\"\n", fc->augmentation); | |
3945 | printf (" Code alignment factor: %u\n", fc->code_factor); | |
3946 | printf (" Data alignment factor: %d\n", fc->data_factor); | |
3947 | printf (" Return address column: %d\n", fc->ra); | |
3948 | ||
3949 | if (augmentation_data_len) | |
3950 | { | |
3951 | unsigned long i; | |
3952 | printf (" Augmentation data: "); | |
3953 | for (i = 0; i < augmentation_data_len; ++i) | |
3954 | printf (" %02x", augmentation_data[i]); | |
3955 | putchar ('\n'); | |
3956 | } | |
3957 | putchar ('\n'); | |
3958 | } | |
3959 | ||
3960 | if (augmentation_data_len) | |
3961 | { | |
3962 | unsigned char *p, *q; | |
3963 | p = (unsigned char *) fc->augmentation + 1; | |
3964 | q = augmentation_data; | |
3965 | ||
3966 | while (1) | |
3967 | { | |
3968 | if (*p == 'L') | |
3969 | q++; | |
3970 | else if (*p == 'P') | |
3971 | q += 1 + size_of_encoded_value (*q); | |
3972 | else if (*p == 'R') | |
3973 | fc->fde_encoding = *q++; | |
3974 | else | |
3975 | break; | |
3976 | p++; | |
3977 | } | |
3978 | ||
3979 | if (fc->fde_encoding) | |
3980 | encoded_ptr_size = size_of_encoded_value (fc->fde_encoding); | |
3981 | } | |
3982 | ||
3983 | frame_need_space (fc, fc->ra); | |
3984 | } | |
3985 | else | |
3986 | { | |
3987 | unsigned char *look_for; | |
3988 | static Frame_Chunk fde_fc; | |
3989 | ||
3990 | fc = & fde_fc; | |
3991 | memset (fc, 0, sizeof (Frame_Chunk)); | |
3992 | ||
3993 | look_for = is_eh ? start - 4 - cie_id : section_start + cie_id; | |
3994 | ||
3995 | for (cie = chunks; cie ; cie = cie->next) | |
3996 | if (cie->chunk_start == look_for) | |
3997 | break; | |
3998 | ||
3999 | if (!cie) | |
4000 | { | |
53b8873b | 4001 | warn ("Invalid CIE pointer %#08lx in FDE at %#08lx\n", |
1617e571 | 4002 | cie_id, (unsigned long)(saved_start - section_start)); |
19e6b90e L |
4003 | fc->ncols = 0; |
4004 | fc->col_type = xmalloc (sizeof (short int)); | |
4005 | fc->col_offset = xmalloc (sizeof (int)); | |
4006 | frame_need_space (fc, max_regs - 1); | |
4007 | cie = fc; | |
4008 | fc->augmentation = ""; | |
4009 | fc->fde_encoding = 0; | |
4010 | } | |
4011 | else | |
4012 | { | |
4013 | fc->ncols = cie->ncols; | |
4014 | fc->col_type = xcmalloc (fc->ncols, sizeof (short int)); | |
4015 | fc->col_offset = xcmalloc (fc->ncols, sizeof (int)); | |
4016 | memcpy (fc->col_type, cie->col_type, fc->ncols * sizeof (short int)); | |
4017 | memcpy (fc->col_offset, cie->col_offset, fc->ncols * sizeof (int)); | |
4018 | fc->augmentation = cie->augmentation; | |
4019 | fc->code_factor = cie->code_factor; | |
4020 | fc->data_factor = cie->data_factor; | |
4021 | fc->cfa_reg = cie->cfa_reg; | |
4022 | fc->cfa_offset = cie->cfa_offset; | |
4023 | fc->ra = cie->ra; | |
cc86f28f | 4024 | frame_need_space (fc, max_regs - 1); |
19e6b90e L |
4025 | fc->fde_encoding = cie->fde_encoding; |
4026 | } | |
4027 | ||
4028 | if (fc->fde_encoding) | |
4029 | encoded_ptr_size = size_of_encoded_value (fc->fde_encoding); | |
4030 | ||
4031 | fc->pc_begin = get_encoded_value (start, fc->fde_encoding); | |
41e92641 | 4032 | if ((fc->fde_encoding & 0x70) == DW_EH_PE_pcrel) |
19e6b90e L |
4033 | fc->pc_begin += section->address + (start - section_start); |
4034 | start += encoded_ptr_size; | |
4035 | fc->pc_range = byte_get (start, encoded_ptr_size); | |
4036 | start += encoded_ptr_size; | |
4037 | ||
4038 | if (cie->augmentation[0] == 'z') | |
4039 | { | |
4040 | augmentation_data_len = LEB (); | |
4041 | augmentation_data = start; | |
4042 | start += augmentation_data_len; | |
4043 | } | |
4044 | ||
4045 | printf ("\n%08lx %08lx %08lx FDE cie=%08lx pc=%08lx..%08lx\n", | |
4046 | (unsigned long)(saved_start - section_start), length, cie_id, | |
4047 | (unsigned long)(cie->chunk_start - section_start), | |
4048 | fc->pc_begin, fc->pc_begin + fc->pc_range); | |
4049 | if (! do_debug_frames_interp && augmentation_data_len) | |
4050 | { | |
4051 | unsigned long i; | |
4052 | ||
4053 | printf (" Augmentation data: "); | |
4054 | for (i = 0; i < augmentation_data_len; ++i) | |
4055 | printf (" %02x", augmentation_data[i]); | |
4056 | putchar ('\n'); | |
4057 | putchar ('\n'); | |
4058 | } | |
4059 | } | |
4060 | ||
4061 | /* At this point, fc is the current chunk, cie (if any) is set, and | |
4062 | we're about to interpret instructions for the chunk. */ | |
4063 | /* ??? At present we need to do this always, since this sizes the | |
4064 | fc->col_type and fc->col_offset arrays, which we write into always. | |
4065 | We should probably split the interpreted and non-interpreted bits | |
4066 | into two different routines, since there's so much that doesn't | |
4067 | really overlap between them. */ | |
4068 | if (1 || do_debug_frames_interp) | |
4069 | { | |
4070 | /* Start by making a pass over the chunk, allocating storage | |
4071 | and taking note of what registers are used. */ | |
4072 | unsigned char *tmp = start; | |
4073 | ||
4074 | while (start < block_end) | |
4075 | { | |
4076 | unsigned op, opa; | |
4077 | unsigned long reg, tmp; | |
4078 | ||
4079 | op = *start++; | |
4080 | opa = op & 0x3f; | |
4081 | if (op & 0xc0) | |
4082 | op &= 0xc0; | |
4083 | ||
4084 | /* Warning: if you add any more cases to this switch, be | |
4085 | sure to add them to the corresponding switch below. */ | |
4086 | switch (op) | |
4087 | { | |
4088 | case DW_CFA_advance_loc: | |
4089 | break; | |
4090 | case DW_CFA_offset: | |
4091 | LEB (); | |
4092 | frame_need_space (fc, opa); | |
4093 | fc->col_type[opa] = DW_CFA_undefined; | |
4094 | break; | |
4095 | case DW_CFA_restore: | |
4096 | frame_need_space (fc, opa); | |
4097 | fc->col_type[opa] = DW_CFA_undefined; | |
4098 | break; | |
4099 | case DW_CFA_set_loc: | |
4100 | start += encoded_ptr_size; | |
4101 | break; | |
4102 | case DW_CFA_advance_loc1: | |
4103 | start += 1; | |
4104 | break; | |
4105 | case DW_CFA_advance_loc2: | |
4106 | start += 2; | |
4107 | break; | |
4108 | case DW_CFA_advance_loc4: | |
4109 | start += 4; | |
4110 | break; | |
4111 | case DW_CFA_offset_extended: | |
12eae2d3 | 4112 | case DW_CFA_val_offset: |
19e6b90e L |
4113 | reg = LEB (); LEB (); |
4114 | frame_need_space (fc, reg); | |
4115 | fc->col_type[reg] = DW_CFA_undefined; | |
4116 | break; | |
4117 | case DW_CFA_restore_extended: | |
4118 | reg = LEB (); | |
4119 | frame_need_space (fc, reg); | |
4120 | fc->col_type[reg] = DW_CFA_undefined; | |
4121 | break; | |
4122 | case DW_CFA_undefined: | |
4123 | reg = LEB (); | |
4124 | frame_need_space (fc, reg); | |
4125 | fc->col_type[reg] = DW_CFA_undefined; | |
4126 | break; | |
4127 | case DW_CFA_same_value: | |
4128 | reg = LEB (); | |
4129 | frame_need_space (fc, reg); | |
4130 | fc->col_type[reg] = DW_CFA_undefined; | |
4131 | break; | |
4132 | case DW_CFA_register: | |
4133 | reg = LEB (); LEB (); | |
4134 | frame_need_space (fc, reg); | |
4135 | fc->col_type[reg] = DW_CFA_undefined; | |
4136 | break; | |
4137 | case DW_CFA_def_cfa: | |
4138 | LEB (); LEB (); | |
4139 | break; | |
4140 | case DW_CFA_def_cfa_register: | |
4141 | LEB (); | |
4142 | break; | |
4143 | case DW_CFA_def_cfa_offset: | |
4144 | LEB (); | |
4145 | break; | |
4146 | case DW_CFA_def_cfa_expression: | |
4147 | tmp = LEB (); | |
4148 | start += tmp; | |
4149 | break; | |
4150 | case DW_CFA_expression: | |
12eae2d3 | 4151 | case DW_CFA_val_expression: |
19e6b90e L |
4152 | reg = LEB (); |
4153 | tmp = LEB (); | |
4154 | start += tmp; | |
4155 | frame_need_space (fc, reg); | |
4156 | fc->col_type[reg] = DW_CFA_undefined; | |
4157 | break; | |
4158 | case DW_CFA_offset_extended_sf: | |
12eae2d3 | 4159 | case DW_CFA_val_offset_sf: |
19e6b90e L |
4160 | reg = LEB (); SLEB (); |
4161 | frame_need_space (fc, reg); | |
4162 | fc->col_type[reg] = DW_CFA_undefined; | |
4163 | break; | |
4164 | case DW_CFA_def_cfa_sf: | |
4165 | LEB (); SLEB (); | |
4166 | break; | |
4167 | case DW_CFA_def_cfa_offset_sf: | |
4168 | SLEB (); | |
4169 | break; | |
4170 | case DW_CFA_MIPS_advance_loc8: | |
4171 | start += 8; | |
4172 | break; | |
4173 | case DW_CFA_GNU_args_size: | |
4174 | LEB (); | |
4175 | break; | |
4176 | case DW_CFA_GNU_negative_offset_extended: | |
4177 | reg = LEB (); LEB (); | |
4178 | frame_need_space (fc, reg); | |
4179 | fc->col_type[reg] = DW_CFA_undefined; | |
4180 | ||
4181 | default: | |
4182 | break; | |
4183 | } | |
4184 | } | |
4185 | start = tmp; | |
4186 | } | |
4187 | ||
4188 | /* Now we know what registers are used, make a second pass over | |
4189 | the chunk, this time actually printing out the info. */ | |
4190 | ||
4191 | while (start < block_end) | |
4192 | { | |
4193 | unsigned op, opa; | |
4194 | unsigned long ul, reg, roffs; | |
4195 | long l, ofs; | |
4196 | dwarf_vma vma; | |
4197 | ||
4198 | op = *start++; | |
4199 | opa = op & 0x3f; | |
4200 | if (op & 0xc0) | |
4201 | op &= 0xc0; | |
4202 | ||
4203 | /* Warning: if you add any more cases to this switch, be | |
4204 | sure to add them to the corresponding switch above. */ | |
4205 | switch (op) | |
4206 | { | |
4207 | case DW_CFA_advance_loc: | |
4208 | if (do_debug_frames_interp) | |
4209 | frame_display_row (fc, &need_col_headers, &max_regs); | |
4210 | else | |
4211 | printf (" DW_CFA_advance_loc: %d to %08lx\n", | |
4212 | opa * fc->code_factor, | |
4213 | fc->pc_begin + opa * fc->code_factor); | |
4214 | fc->pc_begin += opa * fc->code_factor; | |
4215 | break; | |
4216 | ||
4217 | case DW_CFA_offset: | |
4218 | roffs = LEB (); | |
4219 | if (! do_debug_frames_interp) | |
2dc4cec1 L |
4220 | printf (" DW_CFA_offset: %s at cfa%+ld\n", |
4221 | regname (opa, 0), roffs * fc->data_factor); | |
19e6b90e L |
4222 | fc->col_type[opa] = DW_CFA_offset; |
4223 | fc->col_offset[opa] = roffs * fc->data_factor; | |
4224 | break; | |
4225 | ||
4226 | case DW_CFA_restore: | |
4227 | if (! do_debug_frames_interp) | |
2dc4cec1 | 4228 | printf (" DW_CFA_restore: %s\n", regname (opa, 0)); |
19e6b90e L |
4229 | fc->col_type[opa] = cie->col_type[opa]; |
4230 | fc->col_offset[opa] = cie->col_offset[opa]; | |
4231 | break; | |
4232 | ||
4233 | case DW_CFA_set_loc: | |
4234 | vma = get_encoded_value (start, fc->fde_encoding); | |
41e92641 | 4235 | if ((fc->fde_encoding & 0x70) == DW_EH_PE_pcrel) |
19e6b90e L |
4236 | vma += section->address + (start - section_start); |
4237 | start += encoded_ptr_size; | |
4238 | if (do_debug_frames_interp) | |
4239 | frame_display_row (fc, &need_col_headers, &max_regs); | |
4240 | else | |
4241 | printf (" DW_CFA_set_loc: %08lx\n", (unsigned long)vma); | |
4242 | fc->pc_begin = vma; | |
4243 | break; | |
4244 | ||
4245 | case DW_CFA_advance_loc1: | |
4246 | ofs = byte_get (start, 1); start += 1; | |
4247 | if (do_debug_frames_interp) | |
4248 | frame_display_row (fc, &need_col_headers, &max_regs); | |
4249 | else | |
4250 | printf (" DW_CFA_advance_loc1: %ld to %08lx\n", | |
4251 | ofs * fc->code_factor, | |
4252 | fc->pc_begin + ofs * fc->code_factor); | |
4253 | fc->pc_begin += ofs * fc->code_factor; | |
4254 | break; | |
4255 | ||
4256 | case DW_CFA_advance_loc2: | |
4257 | ofs = byte_get (start, 2); start += 2; | |
4258 | if (do_debug_frames_interp) | |
4259 | frame_display_row (fc, &need_col_headers, &max_regs); | |
4260 | else | |
4261 | printf (" DW_CFA_advance_loc2: %ld to %08lx\n", | |
4262 | ofs * fc->code_factor, | |
4263 | fc->pc_begin + ofs * fc->code_factor); | |
4264 | fc->pc_begin += ofs * fc->code_factor; | |
4265 | break; | |
4266 | ||
4267 | case DW_CFA_advance_loc4: | |
4268 | ofs = byte_get (start, 4); start += 4; | |
4269 | if (do_debug_frames_interp) | |
4270 | frame_display_row (fc, &need_col_headers, &max_regs); | |
4271 | else | |
4272 | printf (" DW_CFA_advance_loc4: %ld to %08lx\n", | |
4273 | ofs * fc->code_factor, | |
4274 | fc->pc_begin + ofs * fc->code_factor); | |
4275 | fc->pc_begin += ofs * fc->code_factor; | |
4276 | break; | |
4277 | ||
4278 | case DW_CFA_offset_extended: | |
4279 | reg = LEB (); | |
4280 | roffs = LEB (); | |
4281 | if (! do_debug_frames_interp) | |
2dc4cec1 L |
4282 | printf (" DW_CFA_offset_extended: %s at cfa%+ld\n", |
4283 | regname (reg, 0), roffs * fc->data_factor); | |
19e6b90e L |
4284 | fc->col_type[reg] = DW_CFA_offset; |
4285 | fc->col_offset[reg] = roffs * fc->data_factor; | |
4286 | break; | |
4287 | ||
12eae2d3 JJ |
4288 | case DW_CFA_val_offset: |
4289 | reg = LEB (); | |
4290 | roffs = LEB (); | |
4291 | if (! do_debug_frames_interp) | |
2dc4cec1 L |
4292 | printf (" DW_CFA_val_offset: %s at cfa%+ld\n", |
4293 | regname (reg, 0), roffs * fc->data_factor); | |
12eae2d3 JJ |
4294 | fc->col_type[reg] = DW_CFA_val_offset; |
4295 | fc->col_offset[reg] = roffs * fc->data_factor; | |
4296 | break; | |
4297 | ||
19e6b90e L |
4298 | case DW_CFA_restore_extended: |
4299 | reg = LEB (); | |
4300 | if (! do_debug_frames_interp) | |
2dc4cec1 L |
4301 | printf (" DW_CFA_restore_extended: %s\n", |
4302 | regname (reg, 0)); | |
19e6b90e L |
4303 | fc->col_type[reg] = cie->col_type[reg]; |
4304 | fc->col_offset[reg] = cie->col_offset[reg]; | |
4305 | break; | |
4306 | ||
4307 | case DW_CFA_undefined: | |
4308 | reg = LEB (); | |
4309 | if (! do_debug_frames_interp) | |
2dc4cec1 | 4310 | printf (" DW_CFA_undefined: %s\n", regname (reg, 0)); |
19e6b90e L |
4311 | fc->col_type[reg] = DW_CFA_undefined; |
4312 | fc->col_offset[reg] = 0; | |
4313 | break; | |
4314 | ||
4315 | case DW_CFA_same_value: | |
4316 | reg = LEB (); | |
4317 | if (! do_debug_frames_interp) | |
2dc4cec1 | 4318 | printf (" DW_CFA_same_value: %s\n", regname (reg, 0)); |
19e6b90e L |
4319 | fc->col_type[reg] = DW_CFA_same_value; |
4320 | fc->col_offset[reg] = 0; | |
4321 | break; | |
4322 | ||
4323 | case DW_CFA_register: | |
4324 | reg = LEB (); | |
4325 | roffs = LEB (); | |
4326 | if (! do_debug_frames_interp) | |
2dc4cec1 L |
4327 | { |
4328 | printf (" DW_CFA_register: %s in ", | |
4329 | regname (reg, 0)); | |
4330 | puts (regname (roffs, 0)); | |
4331 | } | |
19e6b90e L |
4332 | fc->col_type[reg] = DW_CFA_register; |
4333 | fc->col_offset[reg] = roffs; | |
4334 | break; | |
4335 | ||
4336 | case DW_CFA_remember_state: | |
4337 | if (! do_debug_frames_interp) | |
4338 | printf (" DW_CFA_remember_state\n"); | |
4339 | rs = xmalloc (sizeof (Frame_Chunk)); | |
4340 | rs->ncols = fc->ncols; | |
4341 | rs->col_type = xcmalloc (rs->ncols, sizeof (short int)); | |
4342 | rs->col_offset = xcmalloc (rs->ncols, sizeof (int)); | |
4343 | memcpy (rs->col_type, fc->col_type, rs->ncols); | |
4344 | memcpy (rs->col_offset, fc->col_offset, rs->ncols * sizeof (int)); | |
4345 | rs->next = remembered_state; | |
4346 | remembered_state = rs; | |
4347 | break; | |
4348 | ||
4349 | case DW_CFA_restore_state: | |
4350 | if (! do_debug_frames_interp) | |
4351 | printf (" DW_CFA_restore_state\n"); | |
4352 | rs = remembered_state; | |
4353 | if (rs) | |
4354 | { | |
4355 | remembered_state = rs->next; | |
cc86f28f | 4356 | frame_need_space (fc, rs->ncols - 1); |
19e6b90e L |
4357 | memcpy (fc->col_type, rs->col_type, rs->ncols); |
4358 | memcpy (fc->col_offset, rs->col_offset, | |
4359 | rs->ncols * sizeof (int)); | |
4360 | free (rs->col_type); | |
4361 | free (rs->col_offset); | |
4362 | free (rs); | |
4363 | } | |
4364 | else if (do_debug_frames_interp) | |
4365 | printf ("Mismatched DW_CFA_restore_state\n"); | |
4366 | break; | |
4367 | ||
4368 | case DW_CFA_def_cfa: | |
4369 | fc->cfa_reg = LEB (); | |
4370 | fc->cfa_offset = LEB (); | |
4371 | fc->cfa_exp = 0; | |
4372 | if (! do_debug_frames_interp) | |
2dc4cec1 L |
4373 | printf (" DW_CFA_def_cfa: %s ofs %d\n", |
4374 | regname (fc->cfa_reg, 0), fc->cfa_offset); | |
19e6b90e L |
4375 | break; |
4376 | ||
4377 | case DW_CFA_def_cfa_register: | |
4378 | fc->cfa_reg = LEB (); | |
4379 | fc->cfa_exp = 0; | |
4380 | if (! do_debug_frames_interp) | |
2dc4cec1 L |
4381 | printf (" DW_CFA_def_cfa_register: %s\n", |
4382 | regname (fc->cfa_reg, 0)); | |
19e6b90e L |
4383 | break; |
4384 | ||
4385 | case DW_CFA_def_cfa_offset: | |
4386 | fc->cfa_offset = LEB (); | |
4387 | if (! do_debug_frames_interp) | |
4388 | printf (" DW_CFA_def_cfa_offset: %d\n", fc->cfa_offset); | |
4389 | break; | |
4390 | ||
4391 | case DW_CFA_nop: | |
4392 | if (! do_debug_frames_interp) | |
4393 | printf (" DW_CFA_nop\n"); | |
4394 | break; | |
4395 | ||
4396 | case DW_CFA_def_cfa_expression: | |
4397 | ul = LEB (); | |
4398 | if (! do_debug_frames_interp) | |
4399 | { | |
4400 | printf (" DW_CFA_def_cfa_expression ("); | |
f1c4cc75 RH |
4401 | decode_location_expression (start, eh_addr_size, ul, 0, |
4402 | section); | |
19e6b90e L |
4403 | printf (")\n"); |
4404 | } | |
4405 | fc->cfa_exp = 1; | |
4406 | start += ul; | |
4407 | break; | |
4408 | ||
4409 | case DW_CFA_expression: | |
4410 | reg = LEB (); | |
4411 | ul = LEB (); | |
4412 | if (! do_debug_frames_interp) | |
4413 | { | |
2dc4cec1 L |
4414 | printf (" DW_CFA_expression: %s (", |
4415 | regname (reg, 0)); | |
4416 | decode_location_expression (start, eh_addr_size, | |
f1c4cc75 | 4417 | ul, 0, section); |
19e6b90e L |
4418 | printf (")\n"); |
4419 | } | |
4420 | fc->col_type[reg] = DW_CFA_expression; | |
4421 | start += ul; | |
4422 | break; | |
4423 | ||
12eae2d3 JJ |
4424 | case DW_CFA_val_expression: |
4425 | reg = LEB (); | |
4426 | ul = LEB (); | |
4427 | if (! do_debug_frames_interp) | |
4428 | { | |
2dc4cec1 L |
4429 | printf (" DW_CFA_val_expression: %s (", |
4430 | regname (reg, 0)); | |
f1c4cc75 RH |
4431 | decode_location_expression (start, eh_addr_size, ul, 0, |
4432 | section); | |
12eae2d3 JJ |
4433 | printf (")\n"); |
4434 | } | |
4435 | fc->col_type[reg] = DW_CFA_val_expression; | |
4436 | start += ul; | |
4437 | break; | |
4438 | ||
19e6b90e L |
4439 | case DW_CFA_offset_extended_sf: |
4440 | reg = LEB (); | |
4441 | l = SLEB (); | |
4442 | frame_need_space (fc, reg); | |
4443 | if (! do_debug_frames_interp) | |
2dc4cec1 L |
4444 | printf (" DW_CFA_offset_extended_sf: %s at cfa%+ld\n", |
4445 | regname (reg, 0), l * fc->data_factor); | |
19e6b90e L |
4446 | fc->col_type[reg] = DW_CFA_offset; |
4447 | fc->col_offset[reg] = l * fc->data_factor; | |
4448 | break; | |
4449 | ||
12eae2d3 JJ |
4450 | case DW_CFA_val_offset_sf: |
4451 | reg = LEB (); | |
4452 | l = SLEB (); | |
4453 | frame_need_space (fc, reg); | |
4454 | if (! do_debug_frames_interp) | |
2dc4cec1 L |
4455 | printf (" DW_CFA_val_offset_sf: %s at cfa%+ld\n", |
4456 | regname (reg, 0), l * fc->data_factor); | |
12eae2d3 JJ |
4457 | fc->col_type[reg] = DW_CFA_val_offset; |
4458 | fc->col_offset[reg] = l * fc->data_factor; | |
4459 | break; | |
4460 | ||
19e6b90e L |
4461 | case DW_CFA_def_cfa_sf: |
4462 | fc->cfa_reg = LEB (); | |
4463 | fc->cfa_offset = SLEB (); | |
4464 | fc->cfa_offset = fc->cfa_offset * fc->data_factor; | |
4465 | fc->cfa_exp = 0; | |
4466 | if (! do_debug_frames_interp) | |
2dc4cec1 L |
4467 | printf (" DW_CFA_def_cfa_sf: %s ofs %d\n", |
4468 | regname (fc->cfa_reg, 0), fc->cfa_offset); | |
19e6b90e L |
4469 | break; |
4470 | ||
4471 | case DW_CFA_def_cfa_offset_sf: | |
4472 | fc->cfa_offset = SLEB (); | |
4473 | fc->cfa_offset = fc->cfa_offset * fc->data_factor; | |
4474 | if (! do_debug_frames_interp) | |
4475 | printf (" DW_CFA_def_cfa_offset_sf: %d\n", fc->cfa_offset); | |
4476 | break; | |
4477 | ||
4478 | case DW_CFA_MIPS_advance_loc8: | |
4479 | ofs = byte_get (start, 8); start += 8; | |
4480 | if (do_debug_frames_interp) | |
4481 | frame_display_row (fc, &need_col_headers, &max_regs); | |
4482 | else | |
4483 | printf (" DW_CFA_MIPS_advance_loc8: %ld to %08lx\n", | |
4484 | ofs * fc->code_factor, | |
4485 | fc->pc_begin + ofs * fc->code_factor); | |
4486 | fc->pc_begin += ofs * fc->code_factor; | |
4487 | break; | |
4488 | ||
4489 | case DW_CFA_GNU_window_save: | |
4490 | if (! do_debug_frames_interp) | |
4491 | printf (" DW_CFA_GNU_window_save\n"); | |
4492 | break; | |
4493 | ||
4494 | case DW_CFA_GNU_args_size: | |
4495 | ul = LEB (); | |
4496 | if (! do_debug_frames_interp) | |
4497 | printf (" DW_CFA_GNU_args_size: %ld\n", ul); | |
4498 | break; | |
4499 | ||
4500 | case DW_CFA_GNU_negative_offset_extended: | |
4501 | reg = LEB (); | |
4502 | l = - LEB (); | |
4503 | frame_need_space (fc, reg); | |
4504 | if (! do_debug_frames_interp) | |
2dc4cec1 L |
4505 | printf (" DW_CFA_GNU_negative_offset_extended: %s at cfa%+ld\n", |
4506 | regname (reg, 0), l * fc->data_factor); | |
19e6b90e L |
4507 | fc->col_type[reg] = DW_CFA_offset; |
4508 | fc->col_offset[reg] = l * fc->data_factor; | |
4509 | break; | |
4510 | ||
4511 | default: | |
53b8873b NC |
4512 | if (op >= DW_CFA_lo_user && op <= DW_CFA_hi_user) |
4513 | printf (_(" DW_CFA_??? (User defined call frame op: %#x)\n"), op); | |
4514 | else | |
cecf136e | 4515 | warn (_("unsupported or unknown Dwarf Call Frame Instruction number: %#x\n"), op); |
19e6b90e L |
4516 | start = block_end; |
4517 | } | |
4518 | } | |
4519 | ||
4520 | if (do_debug_frames_interp) | |
4521 | frame_display_row (fc, &need_col_headers, &max_regs); | |
4522 | ||
4523 | start = block_end; | |
4524 | } | |
4525 | ||
4526 | printf ("\n"); | |
4527 | ||
4528 | return 1; | |
4529 | } | |
4530 | ||
4531 | #undef GET | |
4532 | #undef LEB | |
4533 | #undef SLEB | |
4534 | ||
4535 | static int | |
4536 | display_debug_not_supported (struct dwarf_section *section, | |
4537 | void *file ATTRIBUTE_UNUSED) | |
4538 | { | |
4539 | printf (_("Displaying the debug contents of section %s is not yet supported.\n"), | |
4540 | section->name); | |
4541 | ||
4542 | return 1; | |
4543 | } | |
4544 | ||
4545 | void * | |
4546 | cmalloc (size_t nmemb, size_t size) | |
4547 | { | |
4548 | /* Check for overflow. */ | |
4549 | if (nmemb >= ~(size_t) 0 / size) | |
4550 | return NULL; | |
4551 | else | |
4552 | return malloc (nmemb * size); | |
4553 | } | |
4554 | ||
4555 | void * | |
4556 | xcmalloc (size_t nmemb, size_t size) | |
4557 | { | |
4558 | /* Check for overflow. */ | |
4559 | if (nmemb >= ~(size_t) 0 / size) | |
4560 | return NULL; | |
4561 | else | |
4562 | return xmalloc (nmemb * size); | |
4563 | } | |
4564 | ||
4565 | void * | |
4566 | xcrealloc (void *ptr, size_t nmemb, size_t size) | |
4567 | { | |
4568 | /* Check for overflow. */ | |
4569 | if (nmemb >= ~(size_t) 0 / size) | |
4570 | return NULL; | |
4571 | else | |
4572 | return xrealloc (ptr, nmemb * size); | |
4573 | } | |
4574 | ||
4575 | void | |
4576 | error (const char *message, ...) | |
4577 | { | |
4578 | va_list args; | |
4579 | ||
4580 | va_start (args, message); | |
4581 | fprintf (stderr, _("%s: Error: "), program_name); | |
4582 | vfprintf (stderr, message, args); | |
4583 | va_end (args); | |
4584 | } | |
4585 | ||
4586 | void | |
4587 | warn (const char *message, ...) | |
4588 | { | |
4589 | va_list args; | |
4590 | ||
4591 | va_start (args, message); | |
4592 | fprintf (stderr, _("%s: Warning: "), program_name); | |
4593 | vfprintf (stderr, message, args); | |
4594 | va_end (args); | |
4595 | } | |
4596 | ||
4597 | void | |
4598 | free_debug_memory (void) | |
4599 | { | |
4600 | enum dwarf_section_display_enum i; | |
4601 | ||
4602 | free_abbrevs (); | |
4603 | ||
4604 | for (i = 0; i < max; i++) | |
4605 | free_debug_section (i); | |
4606 | ||
cc86f28f | 4607 | if (debug_information != NULL) |
19e6b90e | 4608 | { |
cc86f28f | 4609 | if (num_debug_info_entries != DEBUG_INFO_UNAVAILABLE) |
19e6b90e | 4610 | { |
cc86f28f | 4611 | for (i = 0; i < num_debug_info_entries; i++) |
19e6b90e | 4612 | { |
cc86f28f NC |
4613 | if (!debug_information [i].max_loc_offsets) |
4614 | { | |
4615 | free (debug_information [i].loc_offsets); | |
4616 | free (debug_information [i].have_frame_base); | |
4617 | } | |
4618 | if (!debug_information [i].max_range_lists) | |
4619 | free (debug_information [i].range_lists); | |
19e6b90e | 4620 | } |
19e6b90e | 4621 | } |
cc86f28f | 4622 | |
19e6b90e L |
4623 | free (debug_information); |
4624 | debug_information = NULL; | |
4625 | num_debug_info_entries = 0; | |
4626 | } | |
19e6b90e L |
4627 | } |
4628 | ||
4cb93e3b TG |
4629 | void |
4630 | dwarf_select_sections_by_names (const char *names) | |
4631 | { | |
4632 | typedef struct | |
4633 | { | |
4634 | const char * option; | |
4635 | int * variable; | |
4636 | int val; | |
4637 | } | |
4638 | debug_dump_long_opts; | |
4639 | ||
4640 | static const debug_dump_long_opts opts_table [] = | |
4641 | { | |
4642 | /* Please keep this table alpha- sorted. */ | |
4643 | { "Ranges", & do_debug_ranges, 1 }, | |
4644 | { "abbrev", & do_debug_abbrevs, 1 }, | |
4645 | { "aranges", & do_debug_aranges, 1 }, | |
4646 | { "frames", & do_debug_frames, 1 }, | |
4647 | { "frames-interp", & do_debug_frames_interp, 1 }, | |
4648 | { "info", & do_debug_info, 1 }, | |
4649 | { "line", & do_debug_lines, FLAG_DEBUG_LINES_RAW }, /* For backwards compatibility. */ | |
4650 | { "rawline", & do_debug_lines, FLAG_DEBUG_LINES_RAW }, | |
4651 | { "decodedline", & do_debug_lines, FLAG_DEBUG_LINES_DECODED }, | |
4652 | { "loc", & do_debug_loc, 1 }, | |
4653 | { "macro", & do_debug_macinfo, 1 }, | |
4654 | { "pubnames", & do_debug_pubnames, 1 }, | |
4655 | /* This entry is for compatability | |
4656 | with earlier versions of readelf. */ | |
4657 | { "ranges", & do_debug_aranges, 1 }, | |
4658 | { "str", & do_debug_str, 1 }, | |
4659 | { NULL, NULL, 0 } | |
4660 | }; | |
4661 | ||
4662 | const char *p; | |
4663 | ||
4664 | p = names; | |
4665 | while (*p) | |
4666 | { | |
4667 | const debug_dump_long_opts * entry; | |
4668 | ||
4669 | for (entry = opts_table; entry->option; entry++) | |
4670 | { | |
4671 | size_t len = strlen (entry->option); | |
4672 | ||
4673 | if (strncmp (p, entry->option, len) == 0 | |
4674 | && (p[len] == ',' || p[len] == '\0')) | |
4675 | { | |
4676 | * entry->variable |= entry->val; | |
4677 | ||
4678 | /* The --debug-dump=frames-interp option also | |
4679 | enables the --debug-dump=frames option. */ | |
4680 | if (do_debug_frames_interp) | |
4681 | do_debug_frames = 1; | |
4682 | ||
4683 | p += len; | |
4684 | break; | |
4685 | } | |
4686 | } | |
4687 | ||
4688 | if (entry->option == NULL) | |
4689 | { | |
4690 | warn (_("Unrecognized debug option '%s'\n"), p); | |
4691 | p = strchr (p, ','); | |
4692 | if (p == NULL) | |
4693 | break; | |
4694 | } | |
4695 | ||
4696 | if (*p == ',') | |
4697 | p++; | |
4698 | } | |
4699 | } | |
4700 | ||
4701 | void | |
4702 | dwarf_select_sections_by_letters (const char *letters) | |
4703 | { | |
4704 | unsigned int index = 0; | |
4705 | ||
4706 | while (letters[index]) | |
4707 | switch (letters[index++]) | |
4708 | { | |
4709 | case 'i': | |
4710 | do_debug_info = 1; | |
4711 | break; | |
4712 | ||
4713 | case 'a': | |
4714 | do_debug_abbrevs = 1; | |
4715 | break; | |
4716 | ||
4717 | case 'l': | |
4718 | do_debug_lines |= FLAG_DEBUG_LINES_RAW; | |
4719 | break; | |
4720 | ||
4721 | case 'L': | |
4722 | do_debug_lines |= FLAG_DEBUG_LINES_DECODED; | |
4723 | break; | |
4724 | ||
4725 | case 'p': | |
4726 | do_debug_pubnames = 1; | |
4727 | break; | |
4728 | ||
4729 | case 'r': | |
4730 | do_debug_aranges = 1; | |
4731 | break; | |
4732 | ||
4733 | case 'R': | |
4734 | do_debug_ranges = 1; | |
4735 | break; | |
4736 | ||
4737 | case 'F': | |
4738 | do_debug_frames_interp = 1; | |
4739 | case 'f': | |
4740 | do_debug_frames = 1; | |
4741 | break; | |
4742 | ||
4743 | case 'm': | |
4744 | do_debug_macinfo = 1; | |
4745 | break; | |
4746 | ||
4747 | case 's': | |
4748 | do_debug_str = 1; | |
4749 | break; | |
4750 | ||
4751 | case 'o': | |
4752 | do_debug_loc = 1; | |
4753 | break; | |
4754 | ||
4755 | default: | |
4756 | warn (_("Unrecognized debug option '%s'\n"), optarg); | |
4757 | break; | |
4758 | } | |
4759 | } | |
4760 | ||
4761 | void | |
4762 | dwarf_select_sections_all (void) | |
4763 | { | |
4764 | do_debug_info = 1; | |
4765 | do_debug_abbrevs = 1; | |
4766 | do_debug_lines = FLAG_DEBUG_LINES_RAW; | |
4767 | do_debug_pubnames = 1; | |
4768 | do_debug_aranges = 1; | |
4769 | do_debug_ranges = 1; | |
4770 | do_debug_frames = 1; | |
4771 | do_debug_macinfo = 1; | |
4772 | do_debug_str = 1; | |
4773 | do_debug_loc = 1; | |
4774 | } | |
4775 | ||
19e6b90e L |
4776 | struct dwarf_section_display debug_displays[] = |
4777 | { | |
1b315056 | 4778 | { { ".debug_abbrev", ".zdebug_abbrev", NULL, NULL, 0, 0 }, |
4cb93e3b | 4779 | display_debug_abbrev, &do_debug_abbrevs, 0, 0 }, |
1b315056 | 4780 | { { ".debug_aranges", ".zdebug_aranges", NULL, NULL, 0, 0 }, |
4cb93e3b | 4781 | display_debug_aranges, &do_debug_aranges, 0, 0 }, |
1b315056 | 4782 | { { ".debug_frame", ".zdebug_frame", NULL, NULL, 0, 0 }, |
4cb93e3b | 4783 | display_debug_frames, &do_debug_frames, 1, 0 }, |
1b315056 | 4784 | { { ".debug_info", ".zdebug_info", NULL, NULL, 0, 0 }, |
4cb93e3b | 4785 | display_debug_info, &do_debug_info, 1, 0 }, |
1b315056 | 4786 | { { ".debug_line", ".zdebug_line", NULL, NULL, 0, 0 }, |
4cb93e3b | 4787 | display_debug_lines, &do_debug_lines, 0, 0 }, |
1b315056 | 4788 | { { ".debug_pubnames", ".zdebug_pubnames", NULL, NULL, 0, 0 }, |
4cb93e3b | 4789 | display_debug_pubnames, &do_debug_pubnames, 0, 0 }, |
1b315056 | 4790 | { { ".eh_frame", "", NULL, NULL, 0, 0 }, |
4cb93e3b | 4791 | display_debug_frames, &do_debug_frames, 1, 1 }, |
1b315056 | 4792 | { { ".debug_macinfo", ".zdebug_macinfo", NULL, NULL, 0, 0 }, |
4cb93e3b | 4793 | display_debug_macinfo, &do_debug_macinfo, 0, 0 }, |
1b315056 | 4794 | { { ".debug_str", ".zdebug_str", NULL, NULL, 0, 0 }, |
4cb93e3b | 4795 | display_debug_str, &do_debug_str, 0, 0 }, |
1b315056 | 4796 | { { ".debug_loc", ".zdebug_loc", NULL, NULL, 0, 0 }, |
4cb93e3b | 4797 | display_debug_loc, &do_debug_loc, 0, 0 }, |
1b315056 | 4798 | { { ".debug_pubtypes", ".zdebug_pubtypes", NULL, NULL, 0, 0 }, |
4cb93e3b | 4799 | display_debug_pubnames, &do_debug_pubnames, 0, 0 }, |
1b315056 | 4800 | { { ".debug_ranges", ".zdebug_ranges", NULL, NULL, 0, 0 }, |
4cb93e3b | 4801 | display_debug_ranges, &do_debug_ranges, 0, 0 }, |
1b315056 | 4802 | { { ".debug_static_func", ".zdebug_static_func", NULL, NULL, 0, 0 }, |
4cb93e3b | 4803 | display_debug_not_supported, NULL, 0, 0 }, |
1b315056 | 4804 | { { ".debug_static_vars", ".zdebug_static_vars", NULL, NULL, 0, 0 }, |
4cb93e3b TG |
4805 | display_debug_not_supported, NULL, 0, 0 }, |
4806 | { { ".debug_types", ".zdebug_types", NULL, NULL, 0, 0 }, | |
4807 | display_debug_not_supported, NULL, 0, 0 }, | |
1b315056 | 4808 | { { ".debug_weaknames", ".zdebug_weaknames", NULL, NULL, 0, 0 }, |
4cb93e3b | 4809 | display_debug_not_supported, NULL, 0, 0 } |
19e6b90e | 4810 | }; |